When the temperature lower than the accelerated temperature, then output at the minimum rotation speed; when it exceed over the full temperature, then always output at full speed. If BF1 and BF2 both are open (ON), the FAN1, FAN2 h.
The "DC12V PWM PC CPU Fan Temperature Control Speed Controller Board Probe Buzzle" is ideal for those needing a high-performance and accurate temperature control solution for PC CPU fans.
