Thermostatic head SONOFF TRV Gen2 Zigbee

With the SONOFF TRV Gen2 Zigbee smart thermostat head, you can manage the temperature in your home more comfortably. The device allows for precise heating control, creation of customized schedules, and integration with your smart home system via Zigbee 3.0. Thanks to its compact design, quiet operation, and automation features, you can adjust the operation of your radiators to your daily needs.

Compact design and user-friendly operation

SONOFF TRV Gen2 is 38% smaller than the previous generation, making it easier to install in tight spaces or where the piping is more complicated. The smooth valve adjustment mechanism operates quietly, ensuring comfort even at night. The device has a color IPS screen that displays the current temperature, settings and operating status, and the ability to rotate the screen in four directions allows you to adjust its position to suit your installation method.

Smart heating schedules

The thermostat allows you to store up to three independent temperature schedules, allowing you to set different configurations for weekdays, weekends, or when you are away. Each schedule supports a 7-day weekly cycle and up to 12 time intervals per day. This solution allows you to precisely adjust the temperature to your daily routine and conveniently control your heating without frequent manual settings.

Automatic temperature control and more energy-efficient heating

SONOFF TRV Gen2 can work with a remote temperature sensor to more accurately monitor indoor conditions. Combined with door and window sensors, you can create automations that will reduce or turn off heating when an open window is detected. Zigbee integration also allows you to connect the thermostat to other smart home devices and create scenarios tailored to the current conditions.

Safe operation and easy installation

The device offers protection features such as automatic valve maintenance to prevent limescale build-up, frost protection, low battery notifications and parental control. The thermostatic head uses a standard M30 × 1.5 mm connection, and the included CAL, RAVL, RAV, M28, GIA and RA adapters allow adaptation to different valve types. It is powered by two AA LR6 1.5 V batteries, which allows for cordless installation and convenient use.

Compact design

The head is made of durable PC plastic, and its compact dimensions of 50 × 50 × 82.9 mm help maintain the aesthetic appearance of the radiator system. The device with batteries weighs 169 g, making it lightweight and easy to install. SONOFF TRV Gen2 is designed to operate in temperatures from -10 °C to 50 °C and humidity from 5% to 95% RH without condensation. The valve control mechanism offers a lifespan of 10,000 operating cycles, ensuring reliable operation during daily use.

Included in the kit

• SONOFF thermostatic head
• Adapters for CAL, RAVL, RAV, M28, GIA and RA valves
• QR code card for installation video
• User manual

Warranty: months

The text is machine translated.

It is important to know

If you are looking for a simple solution for radiator control in an existing apartment or house with the possibility of connecting to a smart home, this thermostatic valve is an interesting choice - but practical compatibility and connectivity require special attention. The biggest impact on long-term satisfaction is compatibility with your Zigbee ecosystem and understanding the limitations that battery power can have.

• The valve uses battery power, so check that the chosen installation location is accessible enough for periodic battery replacement.
• The connection is via the Zigbee protocol - before purchasing, make sure you are already using a Zigbee hub or plan to add one, otherwise the valve will not be able to connect to your system.
• This solution is particularly useful for radiators and in environments where simple replacement of existing valves without major interventions means significant time and cost savings.
• Without a proper central unit, the Zigbee valve does not allow for more advanced automation or integration with other smart devices in your home.
• The Zigbee protocol allows for stable operation in larger systems and multiple devices, which is an advantage when upgrading a smart home later.

Source of editorial recommendations: ENAA guides and team experience.

In practice

🟢 Radiator control in an apartment or house

Very convenient - the valve is designed specifically for radiators and allows for quick replacement without major interventions in the heating system.

🟡 Connecting to a smart home via Zigbee

Suitable with limitations – you will need an existing or additional Zigbee hub; without it, the device does not support most automations on its own.

🟢 Remote management and schedules

Very convenient - with Zigbee and the appropriate app, you can set schedules and adjust the temperature remotely.

🟡 Works without internet

Suitable with limitations – if your Zigbee hub is capable of operating locally, basic functions are accessible even when the internet is down, but this requires prior verification of your equipment.

🔴 Use for underfloor heating or heat pumps

Less suitable – this type of valve is intended for radiators, specialized solutions are recommended for other systems.

Answers to frequently asked questions

Can I use the valve without a Zigbee control panel?

No, you need a Zigbee hub to use and control the valve.

How often will the batteries need to be replaced?

The frequency of battery replacement depends on usage, but it is typically recommended to check the batteries several times a year.

Can I use the valve with other smart devices?

Yes, if all devices are compatible with your Zigbee ecosystem and you have the appropriate control panel, various automations are possible.

What does it mean that it works via Zigbee?

Zigbee is a protocol for wireless communication between smart devices that enables stable connection and integration into larger smart systems.

Is major radiator modification required to install this valve?

Installation is simple for most standard radiators, but before purchasing, check the thread compatibility with your radiator type.

Description updated: October 2026

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