Sensors
   5TE
   10HS
   EC-5
   EC-TM
   EC-20
   EA-10
   MPS-1
Data Collection
   Em50 & Em50R
   Em5b
   ProCheck
   Archer Field PC
Instantaneous Measurements
   ProCheck
   ECH2O Check

EC-20 Sensor

The EC-20 is the original, classic ECH2O sensors (20 cm). Because of the lower frequency, they are only for use in medium-textured soil types with low EC conditions. The typical accuracy in these soil types is ±4% without calibration and 1-2% with soil-specific calibration.

EC-20 Sensor Applications:






 Specifications  
 Range:
  0-40% VWC		  Power:
 2.5 to 5 V possible (3 V typical)
 Output:
 Voltage, correlated linearly with VWC		  Resolution:
 0.1% VWC
 Measurement Time:
 10 ms		  Cable Length:
 5 m
 Temperature:
 -40°C to +50°C		  Connecor Types:
 3.5 mm "stereo" plug or stripped and
 tinned lead wires (3)
 Accuracy:
 ±4 % VWC, medium textured mineral soils
 up to 1 ds/m		  Datalogger Compatibility (not exclusive):
 Decagon: Em50, EM50R, ProCheck
 Campbell Scientific: CR10X, 21X, 23X, CR1000, CR3000, etc.
 Other: Any data acquisition system capable of
 switched 2 to 5 V excitation and single ended voltage
 measurement at 12 bit or better resolution.

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