Soils & Environmental

ES-2 Electrical Conductivity and Temperature Sensor

ES-2 Sensor

  • Sustained EC measurements in a pipe or tank
  • Direct measurements of pore water EC when used with the Wetting Front Fullstop
  • Check your EC values at any location with an internet connection

Complete the electrical conductivity picture.

The ES-2 Electrical Conductivity Sensor is engineered to measure the electrical conductivity of water in a pipe or tank. When you pair the new ES-2 with a GS3 or 5TE in the soil, you’ll begin to see a complete picture of the salts that are going through your system as well as the salts staying in your soil or substrate.

The ES-2 Electrical Conductivity Sensor is designed to measure the electrical conductivity in pipe water or tank water

The ES-2 measures temperature using an onboard thermistor, and electrical conductivity using a stainless steel electrode array.

Accurate Check values via internet connection


Range:    Electrical Conductivity: 0 to 120 dS/m Temperature: -40 to 50°C
Resolution:   Electrical Conductivity: 0.001 dS/m Temperature: 0.1°C
Accuracy:   Electrical Conductivity: + 0.01 dS/m or + 10 % (whichever is greater) Temperature: + 1°C
Operating Temperature: 0 to 50°C
Power Requirements: 3.6 - 15 VDC, 0.03 mA quiescent, 0.5 mA during 300 ms measurement
Dimensions: ES-2 Housing: 2.2 cm Diameter, 11 cm length ES-2F Housing: 1.5 cm Diameter, 9.2 cm length
Thread requirements: 1/2 inch NPT thread
Measurement Time: 300 ms (milliseconds)
Output: Serial TTL, 3.6 Volts Levels or SDI-12
Connector Types: 3.5 mm (stereo) plug, or stripped & tinned lead wires (3)
Cable Length: 5 m standard; custom lengths available upon request
Data Logger Compatibility (not exclusive) Decagon: Em50 series (firmware version 2.11or newer) Campbell Scientific: Any logger with serial I/O including CR10X, CR23X, any CRBasic type logger; Other: Any data acquisition system capable of 3.6 - 15V excitation, and serial or SDI-12 communication
Handheld Reader Compatibility:  ProCheck version: (rev 1.50C+)
Software Compatibility: ECH2O Utility (rev 1.65+), DataTrac3 (rev 3.6+)
Included: Screw-on protective cap for ES-2 use in tanks

Range: Electrical Conductivity: 0 to 120 dS/m,

Temperature: -40 to 50°C


Suitable For:



Irrigation Management

Soil, Moisture, Temperature Measurement

Fertiliser Control Soil / Fertiliser

Drainage Water Level Monitoring

Micro-climate and Canopy

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