The Aqara Radiator Thermostat W600 (WT-A03D) combines energy efficiency and comfort in a single sleek device. Working together with Aqara presence and climate sensors, it automates room-by-room heating control: it automatically turns off heating in unoccupied spaces and maintains the desired temperature in rooms that are in use. Smart schedules adapt to your daily routine—for example, warming the bedroom before bedtime or preheating the living room for your arrival—providing comfort while reducing costs. 0.5 °C fine adjustment and temperature calibration ensure an always “just right” feel, while a battery life of up to 2 years means less hassle. In addition to app, voice, and manual control, Multi-Device Grouping makes operation easier: multiple radiator valves work together to maintain the target temperature in a coordinated way. The 180° rotatable LED display is easy to read from any angle, ultra-quiet operation (