Zigbee Hub Required: Supports Zigbee hubs using the Zigbee 3.0 protocol, such as SONOFF NSPanel Pro, SONOFF iHost, SONOFF ZB Bridge Pro, SONOFF ZBDongle-E,SONOFF ZBDongle-P and Echo Plus 2nd…. Save Energy: The SONOFF smart radiator valve will automatically turn off when ventilating to save money and energy.
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