Humidity Sensor Module

Dimensions: 8.9 cm × 1.8 cm × 0.7 cm (active sensor length 5 cm)
Operating temperature: –40°C to +60°C
Power: 3 mA @ 5VDC
Typical Resolution: 0.1%
Accuracy: ±4% typical
Description:

The Soil Moisture Sensor utilizes capacitance to quantify the water substance of soil (by estimating the dielectric permittivity of the dirt, which is an element of the water content). Basically embed this tough sensor into the dirt to be tried, and the volumetric water substance of the dirt is accounted for in percent.