This is a simple moisture sensor that can be used to measure soil moisture. When there is a lack of water in the soil, the module's output is high; otherwise, it is low. Use this sensor to build an automatic irrigation device.

• Sensitivity adjustment (controlled with a digital potentiometer).
• Operating voltage from 3.3 V - 5 V.
• Dual output module, digital output simple, analog output more accurate.
• Mounting hole for screws, easy installation.
• Small PCB size: 3 cm * 1.6 cm.
• Power indicator light (red) and digital switch output light (green).
• Uses LM393 chip, stable operation.