Smart thermostat with a C-wire converter, base, and backplate so no additional purchases are necessary. 10 terminal blocks (RC, , C, Y2, Y1, G, S, O/B, W1, W2), 2 Expandable port 5 working modes help you save : system off, emergency heating, cooling only, heating only, and system auto. In the automatic mode of the system, cooling and heating automatically switch without manual adjustment Smart WiFi Thermostat for 24V HVAC system including Furnace, Air Conditioner (2H/2C), Heat Pump (2H/2C + Level 2 AUX), Boiler, PTAC, and Fan Coil (3 Fan Speeds), Cooling Only System, heating system only Smart home thermostat support smart Life or Tuya Smart App remote control, , and Assistant voice control. The thermostat only works on 2.4GHz-WLAN Network The thermostat screen displays weather, indoor temperature, outdoor temperature, filter cleaning reminder, time, week, Current state, system mode, Fan mode, WiFi symbol.Smart programmable thermostat can be set to 4 different temperature ranges every day. Automatically obtains the indoor temperature, with a temperature control accuracy of up to 0.5°C, accurately controls the temperature you want, Weight: 0.7385485777 pounds, Manufacturer: Prterver