We designed the SETM08 soil sensor to measure the water content, electrical conductivity, and temperature of soil. The SETM08 soil sensor uses an oscillator running at 70 MHz to measure the dielectric permittivity of soil to determine the water content. A thermistor in thermal contact with the sensor prongs provides the soil temperature. The Polyurethane coating on the SETM08 soil sensor circuit board protects the components from water damage and gives the sensor a longer lifespan.
The same configuration as ECH2O 5TM by Decagon
Lower cost high quality
Volumetric Water Content
Range: 0 (air) to 100 (water)
Range: -40 to 80 ℃
Resolution: 0.01 ℃
Dimensions: 10 cm (1) x 3.2 cm (w) x 0.7 cm (d)
Prong Length: 5.2 cm
Dielectric Measurement Frequency: 70 MHz
Measurement Time: 150 ms (milliseconds)
Power requirements: 3.6 to 30 VDC, 0.3mA quiescent, 10mA during 150 ms measurement
Output: SDI-12 / RS485 MODBUS RTU
Operating Temperature: -40 to 80 ℃
Connector Types: 3.5 mm (stereo) plug or stripped & tinned lead wires (Pigtail)
Cable Length: 5 m standard; Maximum 75 m. Please contact if you need longer cable lengths.