Dial button to set the temperature: the place where the finger points to corresponds to the current temperature value. ON/OFF switch for the system: Press the ON/OFF button to turn on/off the thermostat. Operating mode switch: Press the HEATCOOL button to change the heating/cooling mode. Fan speed button: LMH, i.e., low speed-mode speed-high speed, the wind valve controller does not have this function Description: MT01 series thermostats are generally used on commercial, industrial and civil constructions, which can control the fan coil of air conditioning, air valve and wind. It can balance the temperature within the setting range of the location, and all switches are manual switches. Very easy to handle. Color: white Material: plastic Package Contents: 2 x Temperature Controller 2 x English Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing.