1. Smart Thermostatic Radiator, You Can Quickly Add It To Tuya Hub And Pair It With Just One Click On The App 2. App/Voice Control, Smart Life/Tuya App Remote Control Anytime And Anywhere, Cooperates With Alexa, Home, Yandex 3. Three Modes Are Available: Manual Mode, Automatic Mode And Temporary Program Mode. 4. Weekly Programmable, 5+2/6+1/ Per Week, 6 Periods On Working Days, 2 Periods On Rest Days, Supports Different Temperature Settings And Runs As Planned 5. Precise Temperature Control, More Comfortable WiFi smart TRV thermostatic valve No zigbee hub required, can be connected directly to your 2.4G wifi router Maximum Thrust: 80N Transmission Temperature Range: -10~60C Power: 3(AA) x 1.5B LR6(Without) Communication Frequency: 2.405-2.408Ghz Maximum Stroke: 5.0mm Working Environment Temperature: 0~50C Temperature Setting Range: 5~35C color: White Material: ABS Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Package Contents: 2 x Smart Thermostat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.