The EQ3 Equitensiometer uses class leading ThetaProbe technology to avoid the many problems of water-filled tensiometers. It measures water potential (matric potential) in the range 0 to -1000 kPa and provides an accurate loggable output. It is particularly well suited for use in dry soils.

Measurement	Soil water potential (matric potential) and soil temperature
Accuracy	± 10 kPa over 0 to -100 kPa  10% of reading over -100 to -1000 kPa
	± 0.5°C (0 to 40°C for temp sensor) ± 0.75°C (-20 to +60°C for temp sensor)
Soil moisture measurement range	0 to -1000 kPa (-10bar)
Salinity range	Suitable for all non-saline soils
Temperature range	0 to 40°C
Output	0 to 1.0 V differential, non-linear (Calibration data and graph supplied with each sensor)
	Resistance 5.8Ω to 28Ω for temp sensor
Power requirement	5-14 V, ~18 mA for 1 s
Environmental	IP68
Sample volume	N/A
Dimensions and weight	181 x 40.5 mm diameter  weight: 0.3 kg (excl. cable)
Sensor calibrations	Individual sensor calibrations supplied Recalibration advised every 2 years (depending on use)
Soil calibrations	No soil calibrations required

Channel science and technology has been dedicated to the teaching, scientific research and the sales, research and development of applied instruments in the fields of soil, plants, environment, hydrology, meteorology and animal physiology, ecology and environmental hydrology for many years.