Table 6.

Our own linear calibration equations for sensors from the ECH₂O family (RAW is the sensor output in mV and θ is water content in vol %).

Sensor Type	Material	Packing	Calibration Equation
ECH2O TE	Soil	Moderate	θ = 0.1248 RAW − 76.164
ECH2O EC-5	Soil	Moderate	θ = 0.0949 RAW − 53.587
ECH2O EC-10	Soil	Moderate	θ = 0.0906 RAW − 66.463
ECH2O EC-20	Soil	Moderate	θ = 0.0686 RAW − 54.38
ECH2O TE	Sand	Loose	θ = 0.0689 RAW − 34.96
ECH2O EC-5	Sand	Loose	θ = 0.0671 RAW − 31.113
ECH2O EC-10	Sand	Loose	θ = 0.1097 RAW − 52.722
ECH2O EC-20	Sand	Loose	θ = 0.0836 RAW − 40.528
ECH2O TE	Sand	Moderate	θ = 0.0831 RAW − 44.811
ECH2O EC-5	Sand	Moderate	θ = 0.0734 RAW − 37.168
ECH2O EC-10	Sand	Moderate	θ = 0.0722 RAW − 32.798
ECH2O EC-20	Sand	Moderate	θ = 0.0567 RAW − 25.485
ECH2O TE	Sand	Compact	θ = 0.0951 RAW − 53.7
ECH2O EC-5	Sand	Compact	θ = 0.0815 RAW − 43.313
ECH2O EC-10	Sand	Compact	θ = 0.0557 RAW − 26.018
ECH2O EC-20	Sand	Compact	θ = 0.0450 RAW − 21.359