SONOFF ZigBee TRVZB Thermostatic Head, 2-Pack

The SONOFF TRVZB is a smart ZigBee thermostatic head designed for convenient temperature management in individual rooms and efficient energy consumption control. This device supports automatic and manual modes, heating schedules, open-window detection, and a freeze protection feature. Integrated with popular smart home systems, it allows you to control your heating from a smartphone, tablet, computer, or central control panel, regardless of your location. **Remote Control and Schedules** The TRVZB enables convenient heating management via an app available on smartphones, tablets, and computers. The interface allows you to check the current temperature, heating status, and battery level, as well as set the desired operating temperature. You can create detailed heating schedules for each day of the week, automatically lowering the temperature when you're away and raising it before you return home, which enhances comfort and helps reduce energy consumption. **Energy Savings and Individual Control** Its open-window detection feature automatically turns off heating when a sudden temperature drop is detected, reducing energy loss during ventilation. The thermostat also allows for independent temperature control in each room, letting you set different parameters for the living room, bedroom, children's room, or home office. This improves comfort for household members and prevents overheating unused rooms. **Smart Scenes and Group Control** The TRVZB can integrate with temperature and humidity sensors, using their readings as a reference for heating control. It supports smart automation scenes with other smart home devices, such as modules that control the heating source. Additionally, it allows group control of multiple thermostatic valves, enabling you to manage heating in several rooms simultaneously with a single command—for example, switching all radiators to frost protection mode. **Wide Compatibility and Home Assistant** The TRVZB is compatible with SONOFF ZBBridge-P, ZBBridge-U, NSPanel Pro, and iHost gateways, as well as the Zigbee2MQTT platform. All key features, including schedules, temperature calibration, open-window detection, parental controls, operation history, and OTA updates, are available on compatible systems. The thermostat can also be integrated with Home Assistant via Zigbee2MQTT, providing access to temperature control, operating modes, parental controls, temperature calibration, freeze protection, battery level monitoring, and device operation history. **Comfort, Safety, and Operating History** This device offers a parental lock to prevent accidental changes, automatic calibration for proper valve operation, and a freeze protection feature that automatically activates heating at low temperatures to protect the system from damage. The TRVZB also records historical temperature data and preset settings, displayed hourly, daily, and monthly, facilitating analysis of the heating system's operation and optimizing heating schedules. **Included in the set:** * Thermostatic head x2 * User manual **Specifications:** * Manufacturer: Sonoff * Model: TRVZB * Input voltage: 100–240 V~, 50/60 Hz, 10 A max. * Output voltage: 100–240 V~, 50/60 Hz, 10 A max. * Maximum power: 2400 W * Wi-Fi connectivity: IEEE 802.11 b/g/n 2.4 GHz * Operating temperature: –10°C to 40°C * Operating humidity: 5–95% RH, non-condensing * Housing material: PC V0 * Dimensions: 39.5 × 33 × 16.8 mm