It is not necessary to run PC fan all the times, it consumes the power and create the noise. This board can help the PC fan start running when the temperature reach to our setting, example : 35'C inside the PC, the fan will automatic start running and stop if the temperature below 35'C.

You can image that in winter which the temperature is very low, but our PC FAN is still running, this board help a lot to stop it. and run again when the temperature inside PC increase again.

Technical Information:
- Temperature setting from 10'C to 70'C
- Relay Normally Open ( NO ) with 1A
- Input 12VDC from PC power supply, and 12VDC to PC FAN
- Current consumption 10mA
- PCB dimensions : 2.5cm x 5.4cm