Description: ModelTRVZB colorWhite Wireless connectionzigbee 3.0 Product dimension59.4x59.4x95mm lnput4.5V---(3x1.5V AA Batteries) Net weight154g Battery model1.5V LR6 Alkaline AA Battery Casing materialPC Threaded connectionM30x1.5mm Temperature setting range4C-35 Specifications: 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. it supports Google home, Alexa, Samsung SmartThings, the voice control can free 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. Smart ControlSONOFF Zigbee thermostatic radiator valve has all the smart functions, including APP remote control, voice control, set schedule, group control, etc. Open Window DetectionAutomatically turns off the radiator when ventilating, helping to avoid unnecessary energy waste. Zigbee 3.0 Standard CompatibleSupports 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 ManufacturersFits existing M30 x 1.5mm radiator valves, and the valve adapters in the package are compatible with most heating systems and manufacturers. Complete FunctionalChild lock prevents children from mishandling the radiator. Frost protection makes sure pipes dont 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. Package Included: 1 * Temperature control valve 1 * Instructions 1 * Accessories 1 * Screw