First, "Mini Air Cooling Fan" must be able to provide adequate displacement (i.e., speed), in the cooling apparatus of hot air at high temperature, when the relatively low temperature of the hot air or hot gas stream is relatively small, when it is done Reverse work. Secondly, when installing sensors must choose a good position right, ensuring placed in the proper position. Try to make the sensor directly on the surface of the clamping need heat. In operation, the temperature control of the "Mini Air Cooling Fan", if the heating temperature is high, the regulator will experience a faster rate, while at lower temperatures, in a lower speed, and higher in these intermediate lower, the fan speed will be almost no change in temperature. Temperature changes slowly, when the fan, "Mini Air Cooling Fan" rate of change is slow, does not suddenly change the fan speed and noise. The reaction time depends on the length of the sensor, its thermal sensitivity.