With the rain of the relay or snow sensor, the sensor can be directly connected to 12V small motor or small pump. When the amount of raindrops on the board reaches the humidity set by the white sensitivity switch, the relay will work, and then your motor can be turned or stopped (the motor's action is turning or stopping, depending on what you choose (Lines are 2 and 3, or 2 and 1).
Wiring Method:
1. With DuPont line link control board and test board;
2. 12V power supply positive and negative according to the marked were connected to the green wiring buckle;
3. Relay output 1,2,3, to receive your 12V motor or light bulb , Of which two must be selected for all the way, 1 and 3 choose one.