Change the temperature room through room from your mattress or from the alternative facet of the world. Benefit from a schedule in line with your every day routine. Heat totally when and where you need. The Smart Thermostatic Radiator Valve (Smart TRV) presents an individual, room-by room it heating control, by way of approach of working in conjunction along with your thermostat package and making a so referred to as zoned heating system, which are easily controlled by way of an app for smartphones, pills or computers. Features: ⚫ Tuya Zigbee based; ⚫ Voice controlled via Amazon Alexa or Google Home ⚫ OTA supported ⚫ Valve protection operate opposed to calcification; ⚫ Open window detection; ⚫ Anti-freezing mode. ⚫ Low battery alert. ⚫ Child lock functionality. Specifications: ⚫ Size: Φ55 x ninety four mm; ⚫ Power: 2AA battery (Don&;t use the rechargeable battery) ⚫ Battery lifetime: 1year ⚫ Temperature range: 5-35 ℃, accurate to 0℃; ⚫ Working temperature: -10 ~ 50℃; ⚫ Working Humidity: Up to 90%. ⚫Frequency: 2 ⚫Display: LED video display ⚫IP class:lP21 ⚫ Threaded connection: M30 × 1 mm (adapters include Danfoss RA, RAV, RAVL, M28, Caleffi and Giacomini - 6 universal adapters)