GS361U-ZBDR
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GS361U-ZBDR
Thermostatic Radiator Valves
With advanced features like smart scheduling, open window detection, and anti-limescale functions, the GS361U-ZBDR not only ensures a comfortable living environment but also significantly reduces energy waste and heating costs. It supports group and scene linkage, allowing you to control multiple devices simultaneously or link with external sensors for intelligent automation. The child lock feature ensures your settings remain secure.
Bullet Points
Smart Heating Schedule
Set a 7-day target temperature plan with up to 6 customizable time slots per day, allowing for fully automated and personalized climate control.
Open Window Detection
Automatically detects rapid temperature drops caused by open windows and closes the valve for 30 minutes to prevent heat loss and save energy.
Anti-Limescale Function
During warm seasons (May to August), the device automatically opens and closes the valve once a month to prevent mineral buildup and blockages.
Automatic Valve Calibration
Performs an automatic calibration routine once a week to ensure precise valve positioning and accurate temperature regulation.
Group & Scene Linkage
Group multiple devices for simultaneous control, or link with external door/window sensors and PIR motion sensors for intelligent automation.
Child Lock Protection
Activate the child lock feature to disable local button operations, preventing accidental changes to settings by children.
Key Specifications
Power SupplyDC 3V (2x AA Batteries)
Battery Life2 Years
Wireless ProtocolZigbee 3.0
Wireless Distance≥30m (Open Environment)
Temperature Setting Range5°C ~ 30°C (Auto/Manual)
Anti-Freezing Mode5°C ~ 15°C
Measurement IntervalOnce Every 2 Minutes
Valve Stroke8mm Max
Motor Thrust≥90N
Noise Level<30 dBA
Operating Temperature0°C ~ 40°C
Max Water Temperature90°C
DimensionΦ58mm x 91mm
Interface NutM30 x 1.5mm
Weight~195g (Including Batteries)
Compliance StandardEN IEC 61000, EN IEC 55014, ETSI EN 300328, EN 60730-










Usage Scenarios
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Comfortable Living Room Heating
Automatically adjust the radiator temperature based on your daily routine, ensuring a warm and cozy living space when you are home.
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Automated Energy Saving
Utilize open window detection and smart scheduling to stop heating unoccupied rooms or when windows are open, maximizing energy efficiency.
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Whole-House Smart Control
Connect to a Zigbee gateway to control all radiators in your home simultaneously, and link with motion sensors for intelligent occupancy-based heating.
Living Room
Energy Saving
Smart Control
Why Siterwell

With over a decade of expertise in IoT and safety technology, Siterwell partners with businesses worldwide to create smarter, safer living environments.

Backed by strong R&D capability, global certifications, and a 56,000 m² production base, we deliver both innovation and reliable large-scale manufacturing.
From award-winning designs to proven global delivery across Asia, Europe, and the US, we focus on building long-term partnerships that drive mutual growth and success.

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