SONOFF ZigBee TRVZB thermostatic head, 2 pieces

SONOFF TRVZB is a smart ZigBee thermostatic head that allows you to conveniently manage the temperature in individual rooms and better control energy consumption. The device supports automatic and manual modes, heating schedules, open window detection and frost protection function. Thanks to integration with popular smart home systems, you can control your heating from your smartphone, tablet, computer or central control panel, no matter where you are.

Remote control and schedules

TRVZB allows you to conveniently control your heating via an application available on smartphones, tablets and computers. Through the interface, you can check the current temperature, heating status and battery charge level, and set the desired operating temperature. The thermostat also allows you to create detailed heating schedules for each day of the week, automatically lowering the temperature when you are away and raising it before you return home, which improves comfort and helps reduce energy consumption.

Energy saving and individual control

The open window detection function automatically turns off the heating when it detects a sudden drop in temperature, reducing energy loss during ventilation. The thermostat also allows independent temperature control in each room, allowing you to set different parameters for the living room, bedroom, children's room or home office. This makes it easy to improve the comfort of household members and prevent overheating of unused rooms.

Smart scenes and group control

TRVZB can work with temperature and humidity sensors and use their readings as a reference temperature for heating control. It also supports smart automation scenes with other smart home devices, such as modules that control the heating source. It also allows you to group multiple thermostatic valves so that you can control the heating in multiple rooms at the same time with a single command - for example, by switching all radiators to frost protection mode.

Wide compatibility and home assistant

TRVZB works with SONOFF ZBBridge-P, ZBBridge-U, NSPanel Pro and iHost gateways and the Zigbee2MQTT platform. All key features such as schedules, temperature calibration, open window detection, parental control, operation history and OTA updates are available on compatible systems. The thermostat can also be integrated with Home Assistant via Zigbee2MQTT, providing access to temperature control, operation modes, parental control, temperature calibration, frost protection, battery level monitoring and device operation history.

Comfort, safety and operating history

TRVZB offers a parental lock to prevent accidental changes to settings, automatic calibration to ensure correct valve operation, and a frost protection function that automatically activates heating at low temperatures, protecting the heating system from damage. The device also records historical temperature data and preset settings and displays them hourly, daily and monthly, allowing for analysis of heating system performance and optimization of heating schedules.

Included in the kit

• thermostatic head x2
• user manual

Warranty: 12 months

The text is machine translated.

Same summary

The Sonoff TRVZB ZigBee smart thermostat, a set of two, is best suited for users who want to smartly upgrade radiators without interfering with the electrical wiring — for example, in apartments or houses with an existing heating system. Battery power allows for quick and easy installation, while remote control and schedules make daily routines easier and help manage heating costs more efficiently. Since it supports the Zigbee protocol and is compatible with Home Assistant, it makes sense to choose it if you already use this ecosystem of smart devices in your home. It is less suitable for those who have underfloor heating or want more complex wired solutions.

Recommendation source: Enaa guides and team experiences.

User view

The product is often chosen by residents who want to introduce basic smart automation into their home, despite renting or having an older heating system, without having to make any changes to the wiring. The application allows you to manage the temperature and schedules for each room separately, which is very convenient in practice if you want stable heat when you get home or if you want to save energy by heating only when it really makes sense. Open window detection and frost protection add some peace of mind, especially in the winter months or in rooms that you don't always have control over.

Users also often trust the wider range of smart solutions from the Sonoff brand, as they enable easy integration of new devices into an existing system without major complications.

Why buy at Enaa

At Enaa, you can choose from proven smart thermostat models, supported by clear compatibility information and practical filters to quickly find the right product. The purchase is further facilitated by detailed product presentations and a consulting approach, which ensure that the choice meets your wishes and needs at home.

Answers to frequently asked questions

Does the kit include everything for mounting on standard radiators?

The Sonoff TRVZB ZigBee kit includes two thermostatic heads and adapters for the most common valve types, allowing easy installation on most standard radiators. It is recommended to check the valve type on your radiator beforehand.

Does the thermostat work without an internet connection?

The thermostat connects via the Zigbee protocol and can operate locally with a suitable Zigbee hub or gateway. Basic functions such as temperature control and schedules are therefore available even when the internet connection is interrupted.

How often do I need to change the batteries?

The frequency of battery replacement depends on the type of use and the quality of the batteries used, but on average they are sufficient for one heating season. The device usually warns you in good time when the battery level is low.

Is integration with Home Assistant possible?

Yes, this model is certified compatible with the Home Assistant platform, allowing you to create more advanced scenarios and automations together with other smart devices in your home.

Is it also suitable for underfloor heating?

The Sonoff TRVZB ZigBee model is primarily intended for radiators and is not suitable for direct control of underfloor heating, so we recommend choosing specialized solutions for such a system.

Description updated: July 2026