FeaturesLarge LCD display with backlighteasy to read. WiFi app support multible langauge easy for use and compatibile AlexaGoogle AssistantIFTTT with voice control.LCD display mode working mode coolingheatingventilationfan speed highmiddlelowautoroom temperature setting temperaturetime7 days 4 period programmingtiming turn on/offetc.Fan coil units thermostat is used for control room temperature in central air conditioning fan coil units system.76152 days programmable mode. Suitable for both 2 pipes heating/cooling and 4 pipes heating and cooling system.It is easy and convenient to use. You can connect the thermostat to your wifi net work and allows it to adjust the temperature at your home. It can be controlled by mobile phone or touch on the thermostat. With it you can always have a comfortable temperature at your home.By comparing room temperature with setting temperature to open and close fan coil units and motorized valve in the end of air conditioning systemto achieve purpose of adjusting room temperaturecomfort and saving energy.