1.With anti-reverse power protection, power line reversed, the board will not burn.
2. New dual-mode function: fixed temperature mode and adjustable temperature mode.
3. Fit for 2,3,4 line 12V fan, step less temperature control can be achieved.
4. Single temperature sensor, easier to use, more responsive control.

5. Start mode adjustable temperature range: 15 to 50 degrees, the full speed range of 35 to  70 degrees (start-up and full of temperature difference of 20 degrees).

6.The maximum operating temperature of 110 degrees temperature probe beyond this  temperature, the probe will be damaged!

7.On board there is a mode switch, the switch to the F position, the governor fixed temperature mode, switch to the A position, the governor of temperature adjustable mode.

8.Temperature adjustment potentiometer, when the mode switch is in the A position, rotating the potentiometer, you can change the fan-start temperature.