This moisture sensor works with the water timer to provide customized watering for your plants. The soil moisture sensor is equipped with 5 meters long cable connecting to the water timer or controller and send the moisture. The soil moisture sensor is water-resistant and intended for outdoor use. You can insert the pointed panels into the ground. When it detects that the soil is wet enough, the program that was originally set to be watered will be skipped to prevent overwatering and save water. Simply set the control knob to one of three levels to accommodate your plants' particular moisture requirements.