Aqara W600 Thermostat Valve – thermostatic radiator valve, Zigbee, Thread, Matter (WT-A03D)

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 (<30 dB) won’t disturb your nights, and built-in Frost Protection safeguards the system in winter—ensuring year-round peace of mind.

About Aqara

Aqara is a globally recognized smart home brand with a broad portfolio of sensors, controllers, and automation products. Its solutions are built on the Zigbee, Thread, and Matter standards, offering stable, user-friendly integration with platforms such as Apple Home, Google Home, and Amazon Alexa.

Key product features

• Cost reduction: with presence and climate sensors, heating is controlled per room—turning off in empty spaces and maintaining temperature where needed; smart, personalized schedules can be tailored to your family’s routine.
• Thread/Zigbee flexibility: integrates with Matter platforms in Thread mode, while Zigbee mode provides Aqara-specific features and backward compatibility—alongside Matter support.
• Precise control: 0.5 °C steps and calibration; with an external sensor (e.g., Aqara Climate Sensor W100), the thermostat can directly use the paired sensor’s reading for even more accurate control.
• Long battery life: up to 2 years of reliable operation with fewer battery changes.
• Convenient control: app, voice, manual adjustment; when paired with the W100, it can also be controlled via the W100’s physical buttons; Multi-Device Grouping for rooms with multiple radiators.
• Rotatable LED display, ultra-quiet <30 dB operation, built-in frost protection. 

Smart home protocols and platform compatibility

• Supported protocols: Thread, Zigbee, Bluetooth (for auxiliary functions); Matter support.
• Ecosystems: Apple Home, Google Home, Amazon Alexa, Home Assistant (via Matter; features may vary by platform).
• Mode selection: direct Matter connection in Thread mode; Aqara-specific features and classic Aqara hub compatibility in Zigbee mode.
• Additional sensors: works with Aqara presence and climate sensors (e.g., W100) for Spatial Intelligence and accurate external temperature measurements.

Smart features

• Smart schedules and Geofencing: preheat for wake-up or arrival; Geofencing 2.0 with multi-user support.
• Multi-Device Grouping: multiple thermostats maintain the target temperature in a coordinated way.
• Frost Protection: automatic protection at low temperatures.
• Fine tuning: 0.5 °C steps, calibration, control based on an external sensor.
• Ultra-quiet operation: below 30 dB.

Technical specifications

• Product name: Aqara Radiator Thermostat W600
• Model: WT-A03D
• Dimensions: ⌀57 × 90 mm
• Power supply: 3 V (2 × 1.5 V AA, alkaline)
• Wireless protocols: Thread, Zigbee, Bluetooth; Matter support
• Platform compatibility: Apple Home, Google Home, Amazon Alexa, Home Assistant (Matter)
• Display: 180° rotatable LED display
• Noise level: <30 dB
• Temperature control: 0.5 °C step size, temperature calibration
• Battery life: up to 2 years
• Operating temperature: 0 °C ~ 40 °C
• Operating humidity: 0 ~ 95% RH, non-condensing
• Functions: Spatial Intelligence, smart schedules, Geofencing 2.0, Multi-Device Grouping, Frost Protection
• In the box: Thermostat W600 × 1, User Manual × 1, AA battery (1.5 V) × 2, adapter set (RA / RAV / RAVL / Caleffi / Giacomini / M28 × 1.5) × 6

Additional information