Multiparameter Sondes (EMS)

YSI EXO GO

YSI 600OMS V2 Optical Monitoring Sonde

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SKU: N/A

Key Features:

  • Fits down 2-inch wells
  • Easily connects to data collection platforms
  • Compatible with the YSI 650 MDS
  • Wiped optics prevent biofouling​

Specifications

CertificationsCE, FCC, Assembled in the USA, WEEE, and MCERTS, IP-67, EU Battery Compliance
Connectivity / CommunicationsRS-232, SDI-12
Desktop Software CompatibleEcoWatch®
MediumFresh, sea or polluted water
MonitoringYes
MultiparameterYes
Operating Temperature-5 to +50°C
Parameters Measuredtemperature/conductivity, dissolved oxygen, turbidity, chlorophyll, blue-green algae, rhodamine
Power25 to 30 days at 15 minute sampling interval at 25°C, 4 AA Alkaline cells
SamplingYes
Storage Temperature-10 to +60°C
User CalibratableYes
WaterproofIP-67

 

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YSI EX01 Multiparameter Sondes

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SKU: N/A

Key Features

• Wet-mateable connectors resist corrosion
• Isolated components prevent short circuits
• Welded housings and double o-rings prevent leaks
• High-impact plastic and titanium resists breaking
• Built-in anti-fouling systems protect data integrity
• Low power consumption extends underwater deployments

Depth / Pressure Rating / Limit0 to 250 m (0 to 820 ft)
Desktop Software CompatibleKOR for EXO
Flow CellYes
LanguagesEnglish, Spanish, French, Japanese, German, Chinese
Logging CapabilitiesYes
MediumFresh, sea or polluted water
Memory>1,000,000 logged readings, 512 MB total memory
MultiparameterYes
Operating Temperature-5 to +50°C
Power2 Alkaline Batteries
SamplingYes
Smart Sensors / PortsYes
Storage Temperature-20 to +80°C
Unit of MeasureParameter Dependent
User CalibratableYes
WaterproofYes
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YSI EXO Ammonium Smart Sensor

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SKU: N/A

Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredAmmonium
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes
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YSI EXO Central Wiper

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SKU: N/A

Specifications

Anti FoulingYes
ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2 and EXO3
MediumFresh, sea or polluted water
MonitoringYes
WaterproofYes
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YSI EXO Chloride Smart Sensor

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SKU: N/A

Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredChloride
Precision±15% of reading or 5 mg/L-Cl, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes
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YSI EXO Conductivity & Temperature Smart Sensor

0 out of 5
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SKU: N/A

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
Measurement Method / Channels4-electrode nickel cell
MediumFresh, sea or polluted water
MonitoringNo
Operating Temperature-5 to +50°C
Parameters Measured

Conductivity, Temperature, Salinity, Specific Conductance, TDS

Precision0 to 100: ±0.5% of reading or 0.001 mS/cm, w.i.g.; 100 to 200: ±1% of reading
Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasuremicroSiemens/centimeter
User CalibratableYes
Warranty

2 Years

WaterproofYes
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YSI EXO fDOM Smart Sensor

0 out of 5
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SKU: N/A

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredfDOM
Precision

Linearity: R2 >0.999 for serial dilution of 300 ppb QS solution
Detection Limit: 0.07 ppb QSE

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureppb, QSU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes
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YSI EXO GO

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SKU: N/A

Specifications

 

Compliance

BC; CE; RoHS; WEEE; FCC ID: T9J-RN42; IC/RSS; RCM; TELEC

Connectivity / CommunicationsUSB 2.0, Bluetooth output: Class 2, 10 m typical range. 2.402 – 2.480 GHz.
ConnectorFemale wet-mate connector, USB Micro-AB receptacle
Depth / Pressure Rating / LimitImmersion up to 1 m for 30 minutes
Enclosure

Xenoy

Equipment used withAny EXO Sonde and Windows OS device
GPSGPS + GLONASS Receiver Type, Lat/Long = decimal degrees; Altitude= m or ft; 2.5 m CEP Horizontal Accuracy (actual results dependent on site conditions)
Operating Temperature-5°C to 50°C (23°F to 122°F)
PowerRechargeable Li-Ion battery (typically 9 hours of charging time for a full charge). 15+ hours of operating time (powering an EXO3 with full payload). 12 VDC voltage output.
Size

17.4 x 5.2 x 3.5 cm (6.9 x 2.0 x 1.4 in)

Software

KorEXO Software for Windows OS devices

Storage Temperature0°C to 45°C (32°F to 113°F)
Warranty

1 year

WaterproofIP-67 rated
Weight240 g (0.53 lbs)
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YSI EXO Handheld Display

0 out of 5
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SKU: N/A

Specifications

AutostableYes
Cable OptionsAny EXO field cable
CertificationsCEC, CE; RoHS; IP-67; WEEE; FCC; UN Part III, Section 38.3, Test methods for lithium-ion batteries (Class 9)
ConnectorWet-mate connectors
Desktop Software CompatibleKOR software for the EXO platform
Equipment used withAny EXO Sonde
GPSYes
Graphic DisplayGraphic display with detailed help menus and auto-sized dashboard text based on number of sensors
KeypadYes
LanguagesGerman, English, Spanish, Italian, Norwegian, Traditional Chinese, French, Simplified Chinese, Japanese, Portuguese
Logging Capabilities> 100,000 data sets with single point or continuous logging with autostability option
Operating Temperature0 to 50 °C (32 to 122 °F)
PowerRechargeable lithium-ion battery pack provides ~48 hours if powering the handheld only and ~20 hours if powering the handheld, sonde and four sensors; battery recharge time is ~9 hours with the AC power adapter. The instrument can also be powered via AC or external power pack though the USB port.
SamplingYes
Size

Instrument: 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.27 in x 8.5 in x 2.21 in)

Storage Temperature0 to 45 °C (32 to 113 °F) with battery installed; 0 to 60 °C (32 to 140 °F) without battery installed. Note: Storing Li-Ion batteries in cool environments will help extend their lifespan.
User CalibratableYes, 400 detailed calibration records can be stored and are available to view, download and print for traceability.
Warranty

3-year handheld; 1-year Li-ion battery pack

WaterproofFloats, IP-67
WeightWeight with Battery, 567 grams (1.25 lbs)
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YSI EXO NitraLED UV Nitrate Sensor

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SKU: N/A

Specifications

 

Accuracy

± 0.1 mg/L–N or 5% of reading, w.i.g. (within 2°C)

± 0.4 mg/L–N or 5% of reading, w.i.g. (full temp range)

Depth Rating250 m
Dimensions

Length: 21.3 cm; Diameter: 1.5 cm; Weight: 0.07 kg

Drift / Stability

≤ 0.2 mg/L–N

Equipment used withEXO™
Light SourceUV LED (x2)
Lower Detection Limit

0.005 mg/L–N

Measurement Range

0-10 mg/L–N

Medium

Fresh water

Nominal Wavelengths235 nm, 275 nm
Operating Temperature5-35°C
Pathlength10 mm
Precision

≤ 2% Coefficient of Variation (CV)

Response TimeT95 < 30 seconds
SensorOptical, absorbance
Storage Temperature-20-80 °C
Unit of MeasureNO3-N (Nitrate-N) in mg/L
Warranty

2 years

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YSI EXO Nitrate Smart Sensor

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SKU: N/A

Specifications

ConnectorYes
Depth / Pressure Rating / Limit17 meters
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Measurement Range

0 to 200 mg/L-N (0-30°C)

MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredNitrate
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
SamplingYes
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes
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YSI EXO Optical Dissolved Oxygen Smart Sensor

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SKU: N/A

Specifications

 

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredDO
Precision

0 to 200%: ±1% of reading or 1% saturation, whichever is greater
200 to 500%: ±5% of readings, relative to calibration gasses

0 to 20 mg/L: ±0.1 mg/L or 1% of reading, whichever is greater
20 to 50 mg/L: ±5% of reading, relative to calibration gasses

Response TimeT63<5 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measure% saturation, DO % local, mg/L
User CalibratableYes
Warranty

1 Year – Optical DO membrane cap

2 Years – Optical sensor base

WaterproofYes
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YSI EXO pH & ORP Smart Sensor

0 out of 5
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SKU: N/A

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredPH, ORP
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range; ±20 mV in Redox standard solution
Response TimeT63<5 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units / ORP millivolts
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

 

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YSI EXO pH Smart Sensor (Guarded)

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SKU: N/A

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
SamplingYes
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes
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YSI EXO pH Smart Sensor (Unguarded)

0 out of 5
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SKU: N/A

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes
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YSI EXO Rhodamine Sensor

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SKU: N/A

Specifications

Accuracy

+/- 5% or 0.1 µg/L w.i.g

Depth Rating250m
Linearity

R²>0.999

Measurement Range

0 to 1,000 µg/L or 0 to 100 RFU

Minimum Detection Limit

0.01 µg/L

Operating Temperature-5 to 50°C
Resolution

0.01 µg/L or 0.01 RFU

Storage Temperature-20 to 80°C
Unit of Measureµg/L, ppb, RFU
User Calibratable4-point calibration
Warranty

2 years

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YSI EXO Total Algae PC Smart Sensor

0 out of 5
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SKU: N/A

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Freshwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PC
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years – Optical Sensor

WaterproofYes
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YSI EXO Total Algae PE Smart Sensor

0 out of 5
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SKU: N/A
ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Saltwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PE
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years- Optical sensor

WaterproofYes
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YSI EXO Turbidity Smart Sensor

0 out of 5
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SKU: N/A

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredTurbidity
Precision

0 to 999 FNU: 0.3 FNU or ±2% of reading, whichever is greater;
1000-4000 FNU: ±5% of reading

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasureFNU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes
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YSI EXO Wiped Conductivity & Temperature Sensor

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SKU: N/A

Specifications

 

Anti FoulingYes, with EXO2 Central Wiper
Depth / Pressure Rating / Limit250 meters
Desktop Software CompatibleKor Software
Equipment used withEXO2 with a Central Wiper installed, and Spacing Kit (599831)
MonitoringYes
Operating Temperature-5 to 50°C
Parameters Measured

Conductivity
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Specific Conductance
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Salinity
Range: 0 to 70 ppt
Accuracy: ±2% of the reading or 0.2 ppt, whichever is greater
Resolution: 0.01 ppt

Temperature
Range: -5 to 50°C
Accuracy: ±0.2°C
Resolution: 0.001°C 
Response Time: T95<30 seconds

SamplingNo
Smart Sensors / PortsYes
Storage Temperature-20 to 80°C
User ReplaceableYes
Warranty

2 years

WaterproofYes
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YSI 600OMS V2 Optical Monitoring Sonde

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Key Features:

  • Fits down 2-inch wells
  • Easily connects to data collection platforms
  • Compatible with the YSI 650 MDS
  • Wiped optics prevent biofouling​

Specifications

CertificationsCE, FCC, Assembled in the USA, WEEE, and MCERTS, IP-67, EU Battery Compliance
Connectivity / CommunicationsRS-232, SDI-12
Desktop Software CompatibleEcoWatch®
MediumFresh, sea or polluted water
MonitoringYes
MultiparameterYes
Operating Temperature-5 to +50°C
Parameters Measuredtemperature/conductivity, dissolved oxygen, turbidity, chlorophyll, blue-green algae, rhodamine
Power25 to 30 days at 15 minute sampling interval at 25°C, 4 AA Alkaline cells
SamplingYes
Storage Temperature-10 to +60°C
User CalibratableYes
WaterproofIP-67

 

SKU: N/A

YSI EX01 Multiparameter Sondes

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Key Features

• Wet-mateable connectors resist corrosion
• Isolated components prevent short circuits
• Welded housings and double o-rings prevent leaks
• High-impact plastic and titanium resists breaking
• Built-in anti-fouling systems protect data integrity
• Low power consumption extends underwater deployments

Depth / Pressure Rating / Limit0 to 250 m (0 to 820 ft)
Desktop Software CompatibleKOR for EXO
Flow CellYes
LanguagesEnglish, Spanish, French, Japanese, German, Chinese
Logging CapabilitiesYes
MediumFresh, sea or polluted water
Memory>1,000,000 logged readings, 512 MB total memory
MultiparameterYes
Operating Temperature-5 to +50°C
Power2 Alkaline Batteries
SamplingYes
Smart Sensors / PortsYes
Storage Temperature-20 to +80°C
Unit of MeasureParameter Dependent
User CalibratableYes
WaterproofYes
SKU: N/A

YSI EXO Ammonium Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredAmmonium
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes
SKU: N/A

YSI EXO Central Wiper

0 out of 5
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Specifications

Anti FoulingYes
ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2 and EXO3
MediumFresh, sea or polluted water
MonitoringYes
WaterproofYes
SKU: N/A

YSI EXO Chloride Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredChloride
Precision±15% of reading or 5 mg/L-Cl, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes
SKU: N/A

YSI EXO Conductivity & Temperature Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
Measurement Method / Channels4-electrode nickel cell
MediumFresh, sea or polluted water
MonitoringNo
Operating Temperature-5 to +50°C
Parameters Measured

Conductivity, Temperature, Salinity, Specific Conductance, TDS

Precision0 to 100: ±0.5% of reading or 0.001 mS/cm, w.i.g.; 100 to 200: ±1% of reading
Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasuremicroSiemens/centimeter
User CalibratableYes
Warranty

2 Years

WaterproofYes
SKU: N/A

YSI EXO fDOM Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredfDOM
Precision

Linearity: R2 >0.999 for serial dilution of 300 ppb QS solution
Detection Limit: 0.07 ppb QSE

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureppb, QSU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes
SKU: N/A

YSI EXO GO

0 out of 5
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Specifications

 

Compliance

BC; CE; RoHS; WEEE; FCC ID: T9J-RN42; IC/RSS; RCM; TELEC

Connectivity / CommunicationsUSB 2.0, Bluetooth output: Class 2, 10 m typical range. 2.402 – 2.480 GHz.
ConnectorFemale wet-mate connector, USB Micro-AB receptacle
Depth / Pressure Rating / LimitImmersion up to 1 m for 30 minutes
Enclosure

Xenoy

Equipment used withAny EXO Sonde and Windows OS device
GPSGPS + GLONASS Receiver Type, Lat/Long = decimal degrees; Altitude= m or ft; 2.5 m CEP Horizontal Accuracy (actual results dependent on site conditions)
Operating Temperature-5°C to 50°C (23°F to 122°F)
PowerRechargeable Li-Ion battery (typically 9 hours of charging time for a full charge). 15+ hours of operating time (powering an EXO3 with full payload). 12 VDC voltage output.
Size

17.4 x 5.2 x 3.5 cm (6.9 x 2.0 x 1.4 in)

Software

KorEXO Software for Windows OS devices

Storage Temperature0°C to 45°C (32°F to 113°F)
Warranty

1 year

WaterproofIP-67 rated
Weight240 g (0.53 lbs)
SKU: N/A

YSI EXO Handheld Display

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Specifications

AutostableYes
Cable OptionsAny EXO field cable
CertificationsCEC, CE; RoHS; IP-67; WEEE; FCC; UN Part III, Section 38.3, Test methods for lithium-ion batteries (Class 9)
ConnectorWet-mate connectors
Desktop Software CompatibleKOR software for the EXO platform
Equipment used withAny EXO Sonde
GPSYes
Graphic DisplayGraphic display with detailed help menus and auto-sized dashboard text based on number of sensors
KeypadYes
LanguagesGerman, English, Spanish, Italian, Norwegian, Traditional Chinese, French, Simplified Chinese, Japanese, Portuguese
Logging Capabilities> 100,000 data sets with single point or continuous logging with autostability option
Operating Temperature0 to 50 °C (32 to 122 °F)
PowerRechargeable lithium-ion battery pack provides ~48 hours if powering the handheld only and ~20 hours if powering the handheld, sonde and four sensors; battery recharge time is ~9 hours with the AC power adapter. The instrument can also be powered via AC or external power pack though the USB port.
SamplingYes
Size

Instrument: 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.27 in x 8.5 in x 2.21 in)

Storage Temperature0 to 45 °C (32 to 113 °F) with battery installed; 0 to 60 °C (32 to 140 °F) without battery installed. Note: Storing Li-Ion batteries in cool environments will help extend their lifespan.
User CalibratableYes, 400 detailed calibration records can be stored and are available to view, download and print for traceability.
Warranty

3-year handheld; 1-year Li-ion battery pack

WaterproofFloats, IP-67
WeightWeight with Battery, 567 grams (1.25 lbs)
SKU: N/A

YSI EXO NitraLED UV Nitrate Sensor

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Specifications

 

Accuracy

± 0.1 mg/L–N or 5% of reading, w.i.g. (within 2°C)

± 0.4 mg/L–N or 5% of reading, w.i.g. (full temp range)

Depth Rating250 m
Dimensions

Length: 21.3 cm; Diameter: 1.5 cm; Weight: 0.07 kg

Drift / Stability

≤ 0.2 mg/L–N

Equipment used withEXO™
Light SourceUV LED (x2)
Lower Detection Limit

0.005 mg/L–N

Measurement Range

0-10 mg/L–N

Medium

Fresh water

Nominal Wavelengths235 nm, 275 nm
Operating Temperature5-35°C
Pathlength10 mm
Precision

≤ 2% Coefficient of Variation (CV)

Response TimeT95 < 30 seconds
SensorOptical, absorbance
Storage Temperature-20-80 °C
Unit of MeasureNO3-N (Nitrate-N) in mg/L
Warranty

2 years

SKU: N/A

YSI EXO Nitrate Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Depth / Pressure Rating / Limit17 meters
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Measurement Range

0 to 200 mg/L-N (0-30°C)

MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredNitrate
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
SamplingYes
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes
SKU: N/A

YSI EXO Optical Dissolved Oxygen Smart Sensor

0 out of 5
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Specifications

 

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredDO
Precision

0 to 200%: ±1% of reading or 1% saturation, whichever is greater
200 to 500%: ±5% of readings, relative to calibration gasses

0 to 20 mg/L: ±0.1 mg/L or 1% of reading, whichever is greater
20 to 50 mg/L: ±5% of reading, relative to calibration gasses

Response TimeT63<5 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measure% saturation, DO % local, mg/L
User CalibratableYes
Warranty

1 Year – Optical DO membrane cap

2 Years – Optical sensor base

WaterproofYes
SKU: N/A

YSI EXO pH & ORP Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredPH, ORP
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range; ±20 mV in Redox standard solution
Response TimeT63<5 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units / ORP millivolts
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

 

SKU: N/A

YSI EXO pH Smart Sensor (Guarded)

0 out of 5
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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
SamplingYes
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes
SKU: N/A

YSI EXO pH Smart Sensor (Unguarded)

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes
SKU: N/A

YSI EXO Rhodamine Sensor

0 out of 5
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Specifications

Accuracy

+/- 5% or 0.1 µg/L w.i.g

Depth Rating250m
Linearity

R²>0.999

Measurement Range

0 to 1,000 µg/L or 0 to 100 RFU

Minimum Detection Limit

0.01 µg/L

Operating Temperature-5 to 50°C
Resolution

0.01 µg/L or 0.01 RFU

Storage Temperature-20 to 80°C
Unit of Measureµg/L, ppb, RFU
User Calibratable4-point calibration
Warranty

2 years

SKU: N/A

YSI EXO Total Algae PC Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Freshwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PC
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years – Optical Sensor

WaterproofYes
SKU: N/A

YSI EXO Total Algae PE Smart Sensor

0 out of 5
(0)
ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Saltwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PE
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years- Optical sensor

WaterproofYes
SKU: N/A

YSI EXO Turbidity Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredTurbidity
Precision

0 to 999 FNU: 0.3 FNU or ±2% of reading, whichever is greater;
1000-4000 FNU: ±5% of reading

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasureFNU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes
SKU: N/A

YSI EXO Wiped Conductivity & Temperature Sensor

0 out of 5
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Specifications

 

Anti FoulingYes, with EXO2 Central Wiper
Depth / Pressure Rating / Limit250 meters
Desktop Software CompatibleKor Software
Equipment used withEXO2 with a Central Wiper installed, and Spacing Kit (599831)
MonitoringYes
Operating Temperature-5 to 50°C
Parameters Measured

Conductivity
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Specific Conductance
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Salinity
Range: 0 to 70 ppt
Accuracy: ±2% of the reading or 0.2 ppt, whichever is greater
Resolution: 0.01 ppt

Temperature
Range: -5 to 50°C
Accuracy: ±0.2°C
Resolution: 0.001°C 
Response Time: T95<30 seconds

SamplingNo
Smart Sensors / PortsYes
Storage Temperature-20 to 80°C
User ReplaceableYes
Warranty

2 years

WaterproofYes
SKU: N/A

YSI 600OMS V2 Optical Monitoring Sonde

0 out of 5
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Key Features:

  • Fits down 2-inch wells
  • Easily connects to data collection platforms
  • Compatible with the YSI 650 MDS
  • Wiped optics prevent biofouling​

Specifications

CertificationsCE, FCC, Assembled in the USA, WEEE, and MCERTS, IP-67, EU Battery Compliance
Connectivity / CommunicationsRS-232, SDI-12
Desktop Software CompatibleEcoWatch®
MediumFresh, sea or polluted water
MonitoringYes
MultiparameterYes
Operating Temperature-5 to +50°C
Parameters Measuredtemperature/conductivity, dissolved oxygen, turbidity, chlorophyll, blue-green algae, rhodamine
Power25 to 30 days at 15 minute sampling interval at 25°C, 4 AA Alkaline cells
SamplingYes
Storage Temperature-10 to +60°C
User CalibratableYes
WaterproofIP-67

 

YSI EX01 Multiparameter Sondes

0 out of 5
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Key Features

• Wet-mateable connectors resist corrosion
• Isolated components prevent short circuits
• Welded housings and double o-rings prevent leaks
• High-impact plastic and titanium resists breaking
• Built-in anti-fouling systems protect data integrity
• Low power consumption extends underwater deployments

Depth / Pressure Rating / Limit0 to 250 m (0 to 820 ft)
Desktop Software CompatibleKOR for EXO
Flow CellYes
LanguagesEnglish, Spanish, French, Japanese, German, Chinese
Logging CapabilitiesYes
MediumFresh, sea or polluted water
Memory>1,000,000 logged readings, 512 MB total memory
MultiparameterYes
Operating Temperature-5 to +50°C
Power2 Alkaline Batteries
SamplingYes
Smart Sensors / PortsYes
Storage Temperature-20 to +80°C
Unit of MeasureParameter Dependent
User CalibratableYes
WaterproofYes

YSI EXO Ammonium Smart Sensor

0 out of 5
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Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredAmmonium
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes

YSI EXO Central Wiper

0 out of 5
(0)

Specifications

Anti FoulingYes
ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2 and EXO3
MediumFresh, sea or polluted water
MonitoringYes
WaterproofYes

YSI EXO Chloride Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredChloride
Precision±15% of reading or 5 mg/L-Cl, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes

YSI EXO Conductivity & Temperature Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
Measurement Method / Channels4-electrode nickel cell
MediumFresh, sea or polluted water
MonitoringNo
Operating Temperature-5 to +50°C
Parameters Measured

Conductivity, Temperature, Salinity, Specific Conductance, TDS

Precision0 to 100: ±0.5% of reading or 0.001 mS/cm, w.i.g.; 100 to 200: ±1% of reading
Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasuremicroSiemens/centimeter
User CalibratableYes
Warranty

2 Years

WaterproofYes

YSI EXO fDOM Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredfDOM
Precision

Linearity: R2 >0.999 for serial dilution of 300 ppb QS solution
Detection Limit: 0.07 ppb QSE

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureppb, QSU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes

YSI EXO GO

0 out of 5
(0)

Specifications

 

Compliance

BC; CE; RoHS; WEEE; FCC ID: T9J-RN42; IC/RSS; RCM; TELEC

Connectivity / CommunicationsUSB 2.0, Bluetooth output: Class 2, 10 m typical range. 2.402 – 2.480 GHz.
ConnectorFemale wet-mate connector, USB Micro-AB receptacle
Depth / Pressure Rating / LimitImmersion up to 1 m for 30 minutes
Enclosure

Xenoy

Equipment used withAny EXO Sonde and Windows OS device
GPSGPS + GLONASS Receiver Type, Lat/Long = decimal degrees; Altitude= m or ft; 2.5 m CEP Horizontal Accuracy (actual results dependent on site conditions)
Operating Temperature-5°C to 50°C (23°F to 122°F)
PowerRechargeable Li-Ion battery (typically 9 hours of charging time for a full charge). 15+ hours of operating time (powering an EXO3 with full payload). 12 VDC voltage output.
Size

17.4 x 5.2 x 3.5 cm (6.9 x 2.0 x 1.4 in)

Software

KorEXO Software for Windows OS devices

Storage Temperature0°C to 45°C (32°F to 113°F)
Warranty

1 year

WaterproofIP-67 rated
Weight240 g (0.53 lbs)

YSI EXO Handheld Display

0 out of 5
(0)

Specifications

AutostableYes
Cable OptionsAny EXO field cable
CertificationsCEC, CE; RoHS; IP-67; WEEE; FCC; UN Part III, Section 38.3, Test methods for lithium-ion batteries (Class 9)
ConnectorWet-mate connectors
Desktop Software CompatibleKOR software for the EXO platform
Equipment used withAny EXO Sonde
GPSYes
Graphic DisplayGraphic display with detailed help menus and auto-sized dashboard text based on number of sensors
KeypadYes
LanguagesGerman, English, Spanish, Italian, Norwegian, Traditional Chinese, French, Simplified Chinese, Japanese, Portuguese
Logging Capabilities> 100,000 data sets with single point or continuous logging with autostability option
Operating Temperature0 to 50 °C (32 to 122 °F)
PowerRechargeable lithium-ion battery pack provides ~48 hours if powering the handheld only and ~20 hours if powering the handheld, sonde and four sensors; battery recharge time is ~9 hours with the AC power adapter. The instrument can also be powered via AC or external power pack though the USB port.
SamplingYes
Size

Instrument: 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.27 in x 8.5 in x 2.21 in)

Storage Temperature0 to 45 °C (32 to 113 °F) with battery installed; 0 to 60 °C (32 to 140 °F) without battery installed. Note: Storing Li-Ion batteries in cool environments will help extend their lifespan.
User CalibratableYes, 400 detailed calibration records can be stored and are available to view, download and print for traceability.
Warranty

3-year handheld; 1-year Li-ion battery pack

WaterproofFloats, IP-67
WeightWeight with Battery, 567 grams (1.25 lbs)

YSI EXO NitraLED UV Nitrate Sensor

0 out of 5
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Specifications

 

Accuracy

± 0.1 mg/L–N or 5% of reading, w.i.g. (within 2°C)

± 0.4 mg/L–N or 5% of reading, w.i.g. (full temp range)

Depth Rating250 m
Dimensions

Length: 21.3 cm; Diameter: 1.5 cm; Weight: 0.07 kg

Drift / Stability

≤ 0.2 mg/L–N

Equipment used withEXO™
Light SourceUV LED (x2)
Lower Detection Limit

0.005 mg/L–N

Measurement Range

0-10 mg/L–N

Medium

Fresh water

Nominal Wavelengths235 nm, 275 nm
Operating Temperature5-35°C
Pathlength10 mm
Precision

≤ 2% Coefficient of Variation (CV)

Response TimeT95 < 30 seconds
SensorOptical, absorbance
Storage Temperature-20-80 °C
Unit of MeasureNO3-N (Nitrate-N) in mg/L
Warranty

2 years

YSI EXO Nitrate Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Depth / Pressure Rating / Limit17 meters
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Measurement Range

0 to 200 mg/L-N (0-30°C)

MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredNitrate
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
SamplingYes
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes

YSI EXO Optical Dissolved Oxygen Smart Sensor

0 out of 5
(0)

Specifications

 

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredDO
Precision

0 to 200%: ±1% of reading or 1% saturation, whichever is greater
200 to 500%: ±5% of readings, relative to calibration gasses

0 to 20 mg/L: ±0.1 mg/L or 1% of reading, whichever is greater
20 to 50 mg/L: ±5% of reading, relative to calibration gasses

Response TimeT63<5 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measure% saturation, DO % local, mg/L
User CalibratableYes
Warranty

1 Year – Optical DO membrane cap

2 Years – Optical sensor base

WaterproofYes

YSI EXO pH & ORP Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredPH, ORP
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range; ±20 mV in Redox standard solution
Response TimeT63<5 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units / ORP millivolts
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

 

YSI EXO pH Smart Sensor (Guarded)

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
SamplingYes
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

YSI EXO pH Smart Sensor (Unguarded)

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

YSI EXO Rhodamine Sensor

0 out of 5
(0)

Specifications

Accuracy

+/- 5% or 0.1 µg/L w.i.g

Depth Rating250m
Linearity

R²>0.999

Measurement Range

0 to 1,000 µg/L or 0 to 100 RFU

Minimum Detection Limit

0.01 µg/L

Operating Temperature-5 to 50°C
Resolution

0.01 µg/L or 0.01 RFU

Storage Temperature-20 to 80°C
Unit of Measureµg/L, ppb, RFU
User Calibratable4-point calibration
Warranty

2 years

YSI EXO Total Algae PC Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Freshwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PC
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years – Optical Sensor

WaterproofYes

YSI EXO Total Algae PE Smart Sensor

0 out of 5
(0)
ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Saltwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PE
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years- Optical sensor

WaterproofYes

YSI EXO Turbidity Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredTurbidity
Precision

0 to 999 FNU: 0.3 FNU or ±2% of reading, whichever is greater;
1000-4000 FNU: ±5% of reading

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasureFNU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes

YSI EXO Wiped Conductivity & Temperature Sensor

0 out of 5
(0)

Specifications

 

Anti FoulingYes, with EXO2 Central Wiper
Depth / Pressure Rating / Limit250 meters
Desktop Software CompatibleKor Software
Equipment used withEXO2 with a Central Wiper installed, and Spacing Kit (599831)
MonitoringYes
Operating Temperature-5 to 50°C
Parameters Measured

Conductivity
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Specific Conductance
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Salinity
Range: 0 to 70 ppt
Accuracy: ±2% of the reading or 0.2 ppt, whichever is greater
Resolution: 0.01 ppt

Temperature
Range: -5 to 50°C
Accuracy: ±0.2°C
Resolution: 0.001°C 
Response Time: T95<30 seconds

SamplingNo
Smart Sensors / PortsYes
Storage Temperature-20 to 80°C
User ReplaceableYes
Warranty

2 years

WaterproofYes

YSI 600OMS V2 Optical Monitoring Sonde

0 out of 5
(0)

Key Features:

  • Fits down 2-inch wells
  • Easily connects to data collection platforms
  • Compatible with the YSI 650 MDS
  • Wiped optics prevent biofouling​

Specifications

CertificationsCE, FCC, Assembled in the USA, WEEE, and MCERTS, IP-67, EU Battery Compliance
Connectivity / CommunicationsRS-232, SDI-12
Desktop Software CompatibleEcoWatch®
MediumFresh, sea or polluted water
MonitoringYes
MultiparameterYes
Operating Temperature-5 to +50°C
Parameters Measuredtemperature/conductivity, dissolved oxygen, turbidity, chlorophyll, blue-green algae, rhodamine
Power25 to 30 days at 15 minute sampling interval at 25°C, 4 AA Alkaline cells
SamplingYes
Storage Temperature-10 to +60°C
User CalibratableYes
WaterproofIP-67

 

YSI EX01 Multiparameter Sondes

0 out of 5
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Key Features

• Wet-mateable connectors resist corrosion
• Isolated components prevent short circuits
• Welded housings and double o-rings prevent leaks
• High-impact plastic and titanium resists breaking
• Built-in anti-fouling systems protect data integrity
• Low power consumption extends underwater deployments

Depth / Pressure Rating / Limit0 to 250 m (0 to 820 ft)
Desktop Software CompatibleKOR for EXO
Flow CellYes
LanguagesEnglish, Spanish, French, Japanese, German, Chinese
Logging CapabilitiesYes
MediumFresh, sea or polluted water
Memory>1,000,000 logged readings, 512 MB total memory
MultiparameterYes
Operating Temperature-5 to +50°C
Power2 Alkaline Batteries
SamplingYes
Smart Sensors / PortsYes
Storage Temperature-20 to +80°C
Unit of MeasureParameter Dependent
User CalibratableYes
WaterproofYes

YSI EXO Ammonium Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredAmmonium
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes

YSI EXO Central Wiper

0 out of 5
(0)

Specifications

Anti FoulingYes
ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2 and EXO3
MediumFresh, sea or polluted water
MonitoringYes
WaterproofYes

YSI EXO Chloride Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Depth / Pressure Rating / Limit55 feet
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredChloride
Precision±15% of reading or 5 mg/L-Cl, w.i.g.
Response TimeT63<30 sec
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes

YSI EXO Conductivity & Temperature Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
Measurement Method / Channels4-electrode nickel cell
MediumFresh, sea or polluted water
MonitoringNo
Operating Temperature-5 to +50°C
Parameters Measured

Conductivity, Temperature, Salinity, Specific Conductance, TDS

Precision0 to 100: ±0.5% of reading or 0.001 mS/cm, w.i.g.; 100 to 200: ±1% of reading
Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasuremicroSiemens/centimeter
User CalibratableYes
Warranty

2 Years

WaterproofYes

YSI EXO fDOM Smart Sensor

0 out of 5
(0)

Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredfDOM
Precision

Linearity: R2 >0.999 for serial dilution of 300 ppb QS solution
Detection Limit: 0.07 ppb QSE

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureppb, QSU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes

YSI EXO GO

0 out of 5
(0)

Specifications

 

Compliance

BC; CE; RoHS; WEEE; FCC ID: T9J-RN42; IC/RSS; RCM; TELEC

Connectivity / CommunicationsUSB 2.0, Bluetooth output: Class 2, 10 m typical range. 2.402 – 2.480 GHz.
ConnectorFemale wet-mate connector, USB Micro-AB receptacle
Depth / Pressure Rating / LimitImmersion up to 1 m for 30 minutes
Enclosure

Xenoy

Equipment used withAny EXO Sonde and Windows OS device
GPSGPS + GLONASS Receiver Type, Lat/Long = decimal degrees; Altitude= m or ft; 2.5 m CEP Horizontal Accuracy (actual results dependent on site conditions)
Operating Temperature-5°C to 50°C (23°F to 122°F)
PowerRechargeable Li-Ion battery (typically 9 hours of charging time for a full charge). 15+ hours of operating time (powering an EXO3 with full payload). 12 VDC voltage output.
Size

17.4 x 5.2 x 3.5 cm (6.9 x 2.0 x 1.4 in)

Software

KorEXO Software for Windows OS devices

Storage Temperature0°C to 45°C (32°F to 113°F)
Warranty

1 year

WaterproofIP-67 rated
Weight240 g (0.53 lbs)

YSI EXO Handheld Display

0 out of 5
(0)

Specifications

AutostableYes
Cable OptionsAny EXO field cable
CertificationsCEC, CE; RoHS; IP-67; WEEE; FCC; UN Part III, Section 38.3, Test methods for lithium-ion batteries (Class 9)
ConnectorWet-mate connectors
Desktop Software CompatibleKOR software for the EXO platform
Equipment used withAny EXO Sonde
GPSYes
Graphic DisplayGraphic display with detailed help menus and auto-sized dashboard text based on number of sensors
KeypadYes
LanguagesGerman, English, Spanish, Italian, Norwegian, Traditional Chinese, French, Simplified Chinese, Japanese, Portuguese
Logging Capabilities> 100,000 data sets with single point or continuous logging with autostability option
Operating Temperature0 to 50 °C (32 to 122 °F)
PowerRechargeable lithium-ion battery pack provides ~48 hours if powering the handheld only and ~20 hours if powering the handheld, sonde and four sensors; battery recharge time is ~9 hours with the AC power adapter. The instrument can also be powered via AC or external power pack though the USB port.
SamplingYes
Size

Instrument: 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.27 in x 8.5 in x 2.21 in)

Storage Temperature0 to 45 °C (32 to 113 °F) with battery installed; 0 to 60 °C (32 to 140 °F) without battery installed. Note: Storing Li-Ion batteries in cool environments will help extend their lifespan.
User CalibratableYes, 400 detailed calibration records can be stored and are available to view, download and print for traceability.
Warranty

3-year handheld; 1-year Li-ion battery pack

WaterproofFloats, IP-67
WeightWeight with Battery, 567 grams (1.25 lbs)

YSI EXO NitraLED UV Nitrate Sensor

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Specifications

 

Accuracy

± 0.1 mg/L–N or 5% of reading, w.i.g. (within 2°C)

± 0.4 mg/L–N or 5% of reading, w.i.g. (full temp range)

Depth Rating250 m
Dimensions

Length: 21.3 cm; Diameter: 1.5 cm; Weight: 0.07 kg

Drift / Stability

≤ 0.2 mg/L–N

Equipment used withEXO™
Light SourceUV LED (x2)
Lower Detection Limit

0.005 mg/L–N

Measurement Range

0-10 mg/L–N

Medium

Fresh water

Nominal Wavelengths235 nm, 275 nm
Operating Temperature5-35°C
Pathlength10 mm
Precision

≤ 2% Coefficient of Variation (CV)

Response TimeT95 < 30 seconds
SensorOptical, absorbance
Storage Temperature-20-80 °C
Unit of MeasureNO3-N (Nitrate-N) in mg/L
Warranty

2 years

YSI EXO Nitrate Smart Sensor

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Specifications

ConnectorYes
Depth / Pressure Rating / Limit17 meters
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Measurement Range

0 to 200 mg/L-N (0-30°C)

MediumFresh water
Operating Temperature0 to 30°C
Parameters MeasuredNitrate
Precision±10% of reading or 2 mg/L-N, w.i.g.
Response TimeT63<30 sec
SamplingYes
Storage Temperature0 to 30°C
Unit of Measuremg/L-N, millivolts
User CalibratableYes
Warranty

3 Months – Replaceable ISE reagent module

2 Years – Electronics base

WaterproofYes

YSI EXO Optical Dissolved Oxygen Smart Sensor

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Specifications

 

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredDO
Precision

0 to 200%: ±1% of reading or 1% saturation, whichever is greater
200 to 500%: ±5% of readings, relative to calibration gasses

0 to 20 mg/L: ±0.1 mg/L or 1% of reading, whichever is greater
20 to 50 mg/L: ±5% of reading, relative to calibration gasses

Response TimeT63<5 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measure% saturation, DO % local, mg/L
User CalibratableYes
Warranty

1 Year – Optical DO membrane cap

2 Years – Optical sensor base

WaterproofYes

YSI EXO pH & ORP Smart Sensor

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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredPH, ORP
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range; ±20 mV in Redox standard solution
Response TimeT63<5 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units / ORP millivolts
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

 

YSI EXO pH Smart Sensor (Guarded)

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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
SamplingYes
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

YSI EXO pH Smart Sensor (Unguarded)

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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredpH
Precision±0.1 pH units within ±10°C of calibration temp; ±0.2 pH units for entire temp range
Response TimeT63<3 sec
Storage Temperature0 to 60°C
Unit of MeasurepH units
User CalibratableYes
Warranty

2 Years – Electronics base
1 Year – Replaceable reagent module

WaterproofYes

YSI EXO Rhodamine Sensor

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Specifications

Accuracy

+/- 5% or 0.1 µg/L w.i.g

Depth Rating250m
Linearity

R²>0.999

Measurement Range

0 to 1,000 µg/L or 0 to 100 RFU

Minimum Detection Limit

0.01 µg/L

Operating Temperature-5 to 50°C
Resolution

0.01 µg/L or 0.01 RFU

Storage Temperature-20 to 80°C
Unit of Measureµg/L, ppb, RFU
User Calibratable4-point calibration
Warranty

2 years

YSI EXO Total Algae PC Smart Sensor

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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Freshwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PC
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years – Optical Sensor

WaterproofYes

YSI EXO Total Algae PE Smart Sensor

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ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO2, EXO1
Medium

Saltwater

MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredChlorophyll, BGA-PE
Precision

0 to 100 RFU; 0 to 100 µg/L PC

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of Measureµg/L, RFU
User CalibratableYes
Warranty

2 Years- Optical sensor

WaterproofYes

YSI EXO Turbidity Smart Sensor

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Specifications

ConnectorYes
Desktop Software CompatibleYes
Digital / Digital SensorsYes
Equipment used withEXO1, EXO2
MediumFresh, sea or polluted water
MonitoringYes
Operating Temperature-5 to +50°C
Parameters MeasuredTurbidity
Precision

0 to 999 FNU: 0.3 FNU or ±2% of reading, whichever is greater;
1000-4000 FNU: ±5% of reading

Response TimeT63<2 sec
SamplingYes
Storage Temperature-20 to +80°C
Unit of MeasureFNU
User CalibratableYes
Warranty

2 Years – Optical sensors

WaterproofYes

YSI EXO Wiped Conductivity & Temperature Sensor

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Specifications

 

Anti FoulingYes, with EXO2 Central Wiper
Depth / Pressure Rating / Limit250 meters
Desktop Software CompatibleKor Software
Equipment used withEXO2 with a Central Wiper installed, and Spacing Kit (599831)
MonitoringYes
Operating Temperature-5 to 50°C
Parameters Measured

Conductivity
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Specific Conductance
Range: 0 to 100 mS/cm
Accuracy: ±1% of the reading or 0.002 mS/cm, whichever is greater
Resolution: 0.0001 to 0.01 mS/cm (range dependent)

Salinity
Range: 0 to 70 ppt
Accuracy: ±2% of the reading or 0.2 ppt, whichever is greater
Resolution: 0.01 ppt

Temperature
Range: -5 to 50°C
Accuracy: ±0.2°C
Resolution: 0.001°C 
Response Time: T95<30 seconds

SamplingNo
Smart Sensors / PortsYes
Storage Temperature-20 to 80°C
User ReplaceableYes
Warranty

2 years

WaterproofYes

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