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Enabling better global research outcomes in soil, plant & environmental monitoring.

Decagon ES-2 Sensor

The ES-2 Electrical Conductivity Sensor is designed 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 develop a complete picture of the salts that are going into your system as well as the salts remaining in your soil or substrate.

  • Continuous EC measurements in a pipe or tank
  • Direct measurements of pore water EC when used in conjunction with the Wetting Front Fullstop
  • Check your EC values anywhere with an 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
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
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, ProCheck, Campbell Scientific
SOFTWARE COMPATIBILITY: ECH2O Utility (rev 1.65+), DataTrac3 (rev 3.6+)
INCLUDED: Screw-on protective cap for ES-2 use in tanks