The Sonoff TRVZB is a smart radiator thermostat designed to manage hot water flow and maintain a consistent temperature in your living spaces. It connects via Zigbee 3.0, which means you will need a compatible gateway, such as the Sonoff Zigbee Bridge, to integrate it into your smart home. Once set up, you can manage your heating through the eWeLink app on Android or iOS, or use voice commands via Amazon Alexa and Google Assistant for hands-free adjustments. This device features a clean white polycarbonate body measuring 59.4 x 59.4 x 95 mm and weighing 154 g, making it a discreet addition to any room. You can monitor the current heat levels on the integrated digital display or make quick changes using the manual rotation dial. Because it is battery operated and uses a modular design, it mounts quickly onto standard radiators without complex wiring. It is a practical choice for those who want to automate their home climate by setting individual room temperatures or creating specific heating schedules. By using the app's automation features, you can ensure your rooms are warm exactly when you need them, helping you balance comfort with energy efficiency.