Dialing button for setting the temperature: The place the finger points to is the current temperature value.<br>ON/OFF Switch for System: Press ON/OFF Key to turn on/off of the thermostat.<br>Working Mode Switch: Press HEATCOOL key to switch the heating/Cooling mode.<br>Fan Speed Key: L-M-H, that is, Low speed-Moddle speed-High speed, Wind valve controller does not have this fLJnction.<br>MT01 series of thermostats are usually used on the commercial, industrial and civil constructi ons, which can control the fan l of air-conditioning, water valve and wind valveect. It can make the temperature balance in the setting range in the location, and all switches are manual switch. Very simple to manipulate.<br>Colour: white<br>Material: plastic<br>Package Contents:<br>1 x Temperature regulator<br>1 x English manual<br>Only the above package content, other are not included.<br>Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.