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 thermostat with a C-wire converter, base, and backplate so no additional purchases are necessary. 10 terminal blocks (RC, RH, C, Y2, Y1, G, S, O/B, W1, W2), 2 Expandable port Smart home thermostat support smart Life or Tuya Smart App remote control, Alexa, and Google Assistant voice control. The thermostat only works on 2.4GHz-WLAN Network 5 working modes help you save energy: 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 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 SPECIFICATION: Power Supply: 24VDC/AC +10% Current Load: 1A (Inductive) 3A (Resistance) Sensor: NTC3950, 10K Set Temp. Range: 41-95℉ (5~35℃) Accuracy: 1℉ (0.5℃) Display Temp. Range: 41~95℉ (5~35℃) Ambient Temp.: 32~113℉ (0~45℃) Ambient Humidity: 5~95%RH(Non Condensing) Storage Temp: 23~113℉ (-5~45℃) Timing Error: Less than1% Power Consumption: Less than1.5W The Smart Heat Pump thermostat has a stylish and beautiful design with 5 different color backlights, The touch knob, color LCD screen, and the numbers on the screen are clear, bright, and easy to read Material: plastic colour: white Package Contents: 1 x WiFi Thermostat 1 x Adapter board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.