Features Suitable Voice and APP: This water heating temperature controller is compatible with APP for Tuya and with voice controlling for Tmall Genie and for DuerOS. LCD Digital Display: Gas boiler temperature controller with LCD digital display, simple reading. You can easily use it with the clear number displaying. Suitable for hotels, villas, apartments, office buildings, hospitals and so on. Input Voltage and Temperature: The smart thermostat's input voltage is AC90‑240V, display range is 0‑50℃, temperature setting is 5‑60℃, temperature sensor is NTC. Control Mode: The intelligent thermostat has various control modes, including intelligent timing, key control, and programmed time control. Wall Mounted: Our smart thermostat is a wall mounted controller that can be connected via RF frequency, and a collector (not included), and then connected to a gas boiler or underfloor water heating system via a collector (not included). Specification: Item Type: Intelligent Thermostat Material: ABS Temperature Sensor: NTC Temperature Accuracy: ±1℃ Display: LCD Display Operating Environment: -5-50℃ Power Consumption: <1W Temperature Setting: 5-60℃ Display Range: 0-50℃ Input Voltage: AC90-240V Control Mode: 1. Intelligent Timing, 2. Keys Control, 3. Programming Time Control Package List: 1 x Temperature Controller 2 x Screw Package List 1 x Temperature Controller 2 x Screw