Touch Screen Operation Thermostat TRV Heavy Duty Heating Controlling Device For Indoor Features: *Programmable weekly plan selection: helps handbook environment of 5+2, 6+1 and 7-day weekly plans, and has 6 time intervals to determine from, providing you with comfort in surroundings custom-made indoor temperature plans beneath diversified conditions .*Window opening detection: When the room temperature suddenlys drops to the temperature threshold, the valves will shut for 15 minutes. Additionally, it elements an easy-to-read digital show of the temperature in ℃.*Voice and handheld remote control purposes of wireless gateways: Based on a wi-fi gateways, after the valves is efficiently linked to the Apps, remote control of the Apps by way of a smartphone is supported, and hands-free voice management also is supported.*Battery Powered, No AC-Installation Required: The controller is powered by way of 2 AA batteries (not included), requiring no separate AC-power supply and simple to install.*The new mini-designed thermostat has a simple and clear LCD show on the body. The radiators-thermostat is supplied with an LCD electronic display. It is a different valves used in conjunction with the heating-radiators to manually set the indoor temperature. Mainly used to regulate the last and opening of pipes in surface heating systems. 2MQTT settings are available. Notice:1 shade could also be slightly varied from the picture due to diverse mild effect2 enable 1-3cm deviation due to guide measurement Description:Power supply: 2*AA* 1 LR6/mignon/AA (not included)Operating temperature: -5~45°CConstants temperature tolerance: ±0°CTemperature range 5~30°CThread size: M30*1 mm Package List:1 set x Thermostat