ECH₂O TE combined EC, Soil Moisture and Temperature probe

The ECH₂O-TE sensor measures electrical conductivity (EC) in addition to soil moisture and temperature. EC is measured by applying an alternating electrical current to two outer electrodes, and measuring the voltage between two inner ones. Both this voltage and the current are used to determine conductance.

Specifications

Measurements taken	Volumetric water content, temperature and electrical conductivity
Accuracy	MINERAL SOIL: ±3% up to 8dS/m, ±1-2% w/ soil-specific calibration. ROCKWOOL: ±3%, 0.5-8dS/m. POTTINGSOIL: ±3%, 3-14dS/m.
Range	0-100%VWC
Electrical Interface	3.5mm plug, 3-wire
Supply Voltage	3-16 VDC, 0.3mA quiescent, 10mA for 9ms measurement.
Frequency	70MHz
Output	Serial 3V TTL, 8bit, 1-stop bit, no parity.

Click here for a comparison of different ECH₂O soil moisture sensors

ECH2O TE combined EC, Soil Moisture and Temperature probe

Specifications

ECH₂O TE combined EC, Soil Moisture and Temperature probe