DC 12V 24V 4A 2-Way Adjustable PWM Fan Speed Controller, Automatic PC CPU Case Fans Temperature Control Governor with Sensor for 2 3 4-Wire DC Fan

DC 12V 24V 4A 2-Way Adjustable PWM Fan Speed Controller, Automatic PC CPU Case Fans Temperature Control Governor with Sensor for 2 3 4-Wire DC Fan

• 1. PWM speed controller adopts PWM control technology to realize temperature control and speed regulation. The fan speed can be controlled according to the ambient temperature. When the ambient temperature is lower than the set starting temperature, the governor controls the fan to stop running.
• 2. Fan speed controller, small size, high performance, saving operation space. Fan Temperature Controller small size: 2.20x1.38x0.79inch (LxWxH), M3 mounting hole. Can control various 12V/24V DC 2-wire/3-wire/4-wire fans or motors. Maximum drive current 4A. [3-wire/4-wire fans only need to connect the fan's power cord to the controller]
• 3. Dual working mode optional, fixed temperature mode or adjustable temperature mode. Fixed mode: The starting temperature of the governor becomes 30℃ (86°F), 30 to 50 degrees fan speed linear increase, 50°C(122°F) above the fan at full speed; Adjustable mode: Start-up temperature range: 10-50°C, full speed range of 30-70°C (Full-speed temperature=Start temperature +20°C).
• 4. Fan speed control module is equipped with a high-precision temperature sensor with a cable length of 30cm/11.8inch and comes with a mounting buckle. It can be used to measure the temperature of air, liquid and solid surface. The temperature measurement range is -20~110℃. The temperature measurement accuracy is ±1℃.
• 5. Notice: The voltage of the DC power supply used must be the same as the voltage of the fan, and the current of the power supply must be greater than the total current of the fan. The speed governor has a hysteresis circuit. The start temperature and the stop temperature of the fan are set by the difference of 2°C.