Radiator thermostat – basic

Control your radiators smartly according to your wishes. With the radiator thermostat - basic, you can get started in the Smart Home in no time at all.

Smart heating has never been so easy

The Homematic IP radiator thermostat - basic is the ideal start to smart, energy-saving living. Thanks to a preset heating profile, the device is immediately ready for use, without any further configuration. Simply unpack, connect and benefit from the intelligent technology. Advanced users adapt the heating behaviour perfectly to their individual needs with three adjustable heating profiles and 13 possible changes per day. This way you can save up to 33 %* on heating costs.

Comfort temperature at any time

Control the room temperature according to your needs - at home and when you're out and about.

You can do this easily via the app, directly on the device or very conveniently via voice control (using Amazon Alexa or Google Assistant).

Safe and easy operation

Installation is quick and easy with no need to interfere with the heating system or to drain water.

A high-quality union nut is supplied for secure mounting on all common radiator valves with a M30 thread.

Flexible control possibilities

Use the radiator thermostat by itself (stand-alone operation) or as part of your smart home system.

In stand-alone operation: Manual adjustment and operation possible directly on the device If you like, you can combine the radiator thermostat with up to eight window and door contacts (HmIP-SWD) and a wall thermostat (HmIP-WTH-B).
As part of a smart home: Lay the foundation for your smart home with the Homematic IP access point and the free app: Your radiator thermostat is integrated into it, and you can add a smart function to many devices in your home.

The easy way to save on heating costs and CO₂emissions

You can easily set the individual temperature curves in the Homematic IP app.

Up to three adjustable heating profiles and 13 changes per day allow you to have the heating on only only when you want it.

Window open detection

If a window is opened in your home, the radiator automatically lowers the temperature to save energy.

Notice open windows and doors with the open window detection function, or with even greater precision by using a Homematic IP window and door contact.

Händler finden

Installationspartner finden

Controlling the product via the free smartphone app and the toll-free cloud service requires connection to the Homematic IP Access Point.

Our products in a new dimension.

Rotate the product in all directions, zoom in and experience it in three dimensions. This gives you a detailed picture of your favourite products.

Tutorial: How to teach-in devices for room climate control

With Homematic IP controlling the room climate is easy. In this video we show you how to teach-in devices for room climate control like for example a radiator thermostat or an optical sensor that detects if the window is open or closed.

Your advantages at a glance

Do you want to live more safely, save money and protect the environment, or simply increase your living comfort? There are many good reasons for a Smart Home. Find out more now!

Your advantages at a glance

Do you want to live more safely, save money and protect the environment, or simply increase your living comfort? There are many good reasons for a Smart Home. Find out more now!

Wall thermostat - basic

Keep an eye on the temperature, and ensure the smart way that your home is always properly heated. That's easy with the wall thermostat – basic.

Window /door contact with magnet

Detect open windows directly thanks to the window / door contact with magnet. You can also connect the product to your smart heating or alarm function. For even more advantages.

Starter set

Starter Set Climate Control – WLAN

Control your room climate the smart way and exactly as you want it. The Starter Set Climate Control – WLAN also saves you valuable heating costs.

Homematic IP: Smart living. Simply exciting.

Homematic IP means modern, flexible and secure technology from the European market leader*. Let the advantages of our system win you over, and start living smarter straight away.

Homematic IP

With some smart home providers, you have to make a choice: Do you have everything wired, or do you go fully wireless? Some systems are also hermetically sealed and do not accept devices from other manufacturers. Here at Homematic IP, we have a different approach. We are guided by you!

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The Homematic IP app

Configure all the settings for your smart home in the Homematic IP app, and use it to control, regulate and monitor your devices whenever you want – without providing any personal data!

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Homematic IP Wired

A smart home system is particularly robust, interference-proof and reliable when the devices communicate with each other via wired connections. And data transmission is very fast with cables, too. That all comes together with Homematic IP Wired.

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Always here for you and your queries.

Whether you have a question about a product, something isn’t working as you wanted, you’re looking for a specialist partner, or you simply want to give us feedback: we are always here to help.

FAQs

This is where you’ll find the most important questions and our answers about our smart home solutions.

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Service

Have you purchased a Homematic IP product and now have questions about how it works? Our technical support team will be happy to help you.

Specialist tradespeople

Are you looking for a good specialist tradesperson near you? Simply use the convenient search function here on our website.

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Dealers

You can get Homematic IP products and good advice all over Germany. Find the right dealer near you here.

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Innovations, ideas, impulses: your news

Get first-hand news about the latest innovative smart home solutions.

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Use Cases (field_use_cases)

Because security is no coincidence: Homematic IP certified by the VDE for the ninth time

Homematic IP remains a pioneer for security and data protection in the connected home. The smart home solution from the German manufacturer eQ-3 has been certified by the VDE for protocol, IT and data security for the ninth time in a row.

19. December 2025

Review 2025: How Homematic IP makes the home even more convenient

Anniversary, new products and tangible improvements for everyday life - a smart home year characterized by convenience, efficiency and security

18. December 2025

Three new Homematic IP products available as anthracite design variants

eQ-3 presents three more Homematic IP products in elegant anthracite. The new design variant gives the pluggable dimmer, the pluggable switch and the desk stand a modern look that blends in perfectly with sophisticated living spaces.

02. December 2025

Improved operation of the Smart Home: New update for the free Homematic IP app

A new update for the Homematic IP app brings practical functions for an improved user experience. Among other things, switching actuators can now be provided with individual icons so that they can be assigned at first glance.

29. October 2025

* In combination with window and door contacts and depending on user behaviour, structural conditions of the building and the existing heating system.

Order information

Product Name (Short)

HmIP-eTRV-B

Item Number

153412A0 bzw. 153412A2

EAN Code

4047976534128

Technical data

Supply voltage

2x 1.5 V LR6/Mignon/AA

Current consumption

100 mA max.

Typical battery life

2 years (typical)

Degree of protection

IP20

Dimensions (W x H x D)

57 x 68 x 102 mm

Ambient temperature

0 to 50 °C

Weight

185 g (including batteries)

Radio frequency

868.0-868.6 MHz/869.4-869.65 MHz

Typ. open area RF range

250 m

Connection

M30 x 1.5 mm

Voraussetzungen

Operation requires connection to one of the following solutions:

Homematic IP access point with free smartphone app and toll-free cloud service
Central CCU3 with local user interface WebUI (no longer compatible with central CCU2)
Third-party partner solutions

Other

To enable operation, the device has to be connected with one of the following solutions: Stand-alone (push-to-pair), Homematic IP Access Point with free smartphone app and free cloud service, Third-party solutions of partners