SONOFF Zigbee Thermostats Radiator Valve allows you to control the temperature more precisely with less energy, giving you a more comfortable home. Thermostat Radiator Valve allows App remote control and timing, you can control it anytime, anywhere. Alexa voice control frees your hands. Group control allows control of all radiators with just one tap. It also supports creating smart scenes, such as with SNZB-02P, when the sensor detects the temperature is too low, the thermostat radiator valve adjusts to a comfortable temperature.The open window detection function automatically turns off the radiator when ventilating, helping to avoid unnecessary energy waste. Besides, you can check 6 months of data history, and use data to provide ideas for starting heating earlier or later next time.SONOFF Zigbee Thermostats Radiator Valve supports Zigbee hubs using the Zigbee 3.0 protocol, SONOFF NSPanel Pro, ZB Bridge Pro, and ZBDongle-E.SONOFF Zigbee Thermostats Radiator Valve has child lock and frost protection function. Child lock prevent children from mishandling the radiator. Frost protection make sure pipes don't freeze and burst, keeping your home safe. Features: 【Smart Control】SONOFF Zigbee thermostatic radiator valve has all the smart functions, including APP remote control, voice control, set schedule, group control, etc.【Open Window Detection】Automatically turns off the radiator when ventilating, helping to avoid unnecessary energy waste.【Zigbee 3.0 Standard Compatible】Supports Zigbee hubs using the Zigbee 3.0 protocol, and theoretically supports adding to any Zigbee hub developed in accordance with Zigbee 3.0 protocols. Such as SONOFF NSPanel Pro, ZB Bridge Pro, and ZBDongle-E.【Compatible with Most Heating Manufacturers】Fits existing ‘M30 x 1.5mm’ radiator valves, and the valve adapters in the package are compatible with most heating systems and manufacturers.【Complete Functional】Child lock prevents children from mishandling the radiator. Frost protection makes sure pipes don’t freeze and burst, keeping your home safe. Support 6 months of historical data query, you can use data to provide ideas for starting heating earlier or later next time. NOTE: Thermostatic Radiator Valve needs to be used with Zigbee Hub. Please note that SONOFF Zigbee Thermostratic Radiator Valve doesn’t support SONOFF ZBbridge.