Part Number - W-CT
Conductivity Sensor
Important Information
Requires a HOBO MX801 or MX802 Data Logger, the HOBOconnect app, and a compatible mobile device or Windows computer. System requirements for the app can be found at the bottom of our HOBOconnect software page.
Overview
The conductivity sensor is an interchangeable sensor that works with HOBO MX800 Series Water Loggers to measure conductivity and temperature. With this sensor attached to a HOBO MX800 Series Water Logger, the logger can also calculate specific conductance, salinity, and total dissolved solids (TDS).
The conductivity sensor can be attached directly to the fully submersible MX801 model, or attached via cable to the direct read MX802 model, which doesn’t require having to pull the sensor out of the water to download data.
Features
- 4-electrode conductivity sensor provides wide measurement range for monitoring freshwater or saltwater
- Conductivity sensor is centrally located to minimize effects from stilling wells or protective guards
- 1” diameter for use in narrow wells (with cable to MX802 above the well)
- Temperature sensor placement near the sensor tip for fast fast response time
- Specially treated stainless steel holds up in saltwater
Specifications
Conductivity Measurements
- Measurement Range
-
Electrical conductivity and specific conductance: 0 to 100,000 µS/cmSalinity using PSS-78: 2 to 42 PSUTotal Dissolved Solids (TDS): 0 to 100,000 mg/L
- Calibrated Range
-
Electrical conductivity: 50 to 80,000 µS/cm5° to 35°C (41° to 95°F)
- Accuracy
-
Conductivity: +/-2% or 15 µS/cm whichever is greaterSalinity: +/-2% of reading or 0.1 PSU, whichever is greater
- Resolution
-
Conductivity:0.1 µS/cm from 0 to 1,000 µS/cm1 µS/cm from 1,000 to 10,000 µS/cm10 µS/cm from 10,000 to 100,000 µS/cmSalinity: 0.01 PSUTDS: 0.1 mg/L
- Response Time
-
1 second to 90% at a stable temperature
Temperature Measurements
- Range
-
-20° to 50°C (-40° to 122°F), non-freezing water
- Accuracy
-
±0.15°C (±0.27°F) from 0° to 50°C (32° to 122°F)
- Resolution
-
0.01°C at 25°C (0.018°F at 77°F)
- Response Time
-
3 minutes to 90% in water (typical)
- Drift
-
<0.1°C (0.18°F) per year
Sensor
- Dimensions
-
2.5 cm (1 inch) diameter, 17.4 cm (6.87 inches) length
- Weight
-
144 g5.08 oz
- Wetted Materials
-
Passivated 316 Stainless steel housing rated for use in saltwater, Viton and Buna-N O-rings, PET sensor connectorConductivity sensor: PET, platinum plating on electrodesNote: Sensor should be mounted so that it is not in contact with other metals
- Environmental Rating
-
IP68; Waterproof to 100m
Compatible items
Data Logger(s)
Antifouling Protective Guard
Communication Cables
Calibration Solution
Accessories
What's in the box
Conductivity sensor
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