Soil Hygrometer Detection Sensor Module


9 in stock

SKU: Soil Hydrometer Category:


Soil Hygrometer sensor is a simple breakout for measuring the moisture in soil and similar materials.

The two exposed pads function as probes for the sensor, together acting as a variable resistor.

The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher voltage out.

It can be used to detect the moisture of the soil, when the soil is dry , the module outputs a high level , otherwise the output is low.


  • Operating voltage : 3.3V to 5V
  • Dual output mode, analog output more accurate
  • GND : GND External
  • DO : digital output interfaces ( 0 and 1 )
  • AO : analog output interface
  • A fixed bolt hole for easy installation
  • Panel PCB Dimension: 30mm x 16mm
  • Soil Probe Dimension:60mm x 30mm
  • With power indicator (red) and digital switching output indicator (green)
  • LM393 comparator chip

Additional information