Item Type: Digital Thermostat Material: ABS Temperature Sensor: NTC Temperature Accuracy: 1C Display: LCD Display Working Environment: -550C Power Consumption: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Voice Control Available: This thermostat can be controlled remotely through a designated APP, or by voice control with for Tmall Genie or for Xiaodu. 2Wall Mounted Controller: This thermostat kit contains a wall mounted controller that can be connected via RF frequency connection, and a 512 collector that connects to a gas boiler or underfloor water heating system. 3LCD Digital Display: This gas boiler thermostat comes with an LCD digital display for clear and simple readings. 4WIDE Application: This gas boiler thermostat can be used in hotels, villas, apartments, office buildings, hospitals, schools, malls, stadiums, recreation areas. 5ABS Material: The housing of this gas boiler thermostat is made of ABS material, which is not easy to wear and tear and is very durable.