Feature:1. Wireless controlling your house radiator no matter where you are via mobilephones APP.2. Compatible with amazon alexa and home, a simply command to voice control the TRV.3. 7day programmable weekly schedule, 4 time period/day can be setting on app.4. You can share the TRV to your family, create a intelligent home together with your family member.5. Child lock function avoids kid\u0027s operation on it. Make sure your home in intelligent and safer status.6. TRV can be set in group in different room, realize group control function in special scene.Specification:This product is a radiator thermostat, suitable for home heating equipment. Convenient installation and simple operation. The temperature can be controlled through the mobilephone app, so that you can enjoy the appropriate temperature as soon as you get home.Features:Wireless controlling your house radiator no matter where you are via mobilephones APP.Compatible with amazon alexa and google home, a simply command to voice control the TRV.7day programmable weekly schedule, 4 time period/day can be setting on app.You can share the TRV to your family, create a intelligent home together with your family member.Child lock function avoids kid's operation on it. Make sure your home in intelligent and safer status.TRV can be set in group in different room, realize group control function in special scene.Note:Needs to be used with a graffiti gateway (not included).Specifications:Color: whiteSensor: NTCFrequency: 2.4GHzThread: M30*1.5mmBattery: 2 * AA battery (not included)Stroke: max. 6mmTemeprature range: 5-60Temperature display: 0-60Working temperature-10- 40Item size: 94 * 55mm / 3.7 * 2.2inPackage size: 105 * 96 * 96mm / 4.1 * 3.8 * 3.8inPackage weight: 194g / 6.8ouncePacking List:1 * Temperature Controller1 * Danfoss RA Adapter1 * Giacomini Connector Adapter1 * Caleffi Connector Adapter.Package List:1 * Temperature Controller1 * Danfoss RA Adapter1 * Giacomini Connector Adapter1 * Caleffi Connector Adapter