IREL HS capacitive soil moisture sensors are based on the effect of the dependence of the measuring probe capacitance on the properties of the environment.
The sensors can be used in automatic control systems based on the IREL MASTER controller to regulate soil moisture or water levels in various reservoirs.
The sensors are made of waterproof materials, which allows their use underground or in an aquatic environment.
The output signal range from 0 to 3.0 V is compatible with the input ranges of most microprocessors.
In combination with IREL VB valve relay boards, the sensors can be used in irrigation systems controlled by timer controllers. This combination blocks watering of a certain zone if the soil is already wet. It also turns off the valve in the middle of the cycle when the moisture sensor reaches the desired moisture level.