WT102
The WT102 does away with batteries altogether: it generates its own power from the temperature difference between the radiator water (above 45°C) and the room, so it never needs a maintenance visit for a battery change. It fits M30 x 1.5 valves with adapters for other brands, runs up to 16 heating plans, detects open windows, protects against freezing and has a child lock and anti-theft accessories. It can take an external NTC sensor or pair with a WT401 wall thermostat for better room control, stores 1,000 records for retransmission and supports multicast for building-wide commands over LoRaWAN. Typical uses are hotels, student halls, offices and social housing.
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