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.

Save energy and get more security.

While you're out, it suddenly starts pouring with rain and you wonder if all the windows - especially the skylights - are closed. Should you rush home just in case? Not if you've installed the Homematic IP window / door contact. This allows you to easily check in the app whether all windows are closed when you're out and about. And by the way, you can also integrate this all-rounder into your Homematic IP security or heating function. 

Haus mit Schutzschild

Monitoring for a secure home

You can immediately detect the opening or closing of windows and doors via the Homematic IP app. 


In combination with Homematic IP alarm sirens (e.g. HmIP-ASIR-2), your home becomes even more secure. Because this automatically triggers a loud alarm when a window or door is opened.


Fresh air without wasting energy

The room temperature is automatically lowered during ventilation if you connect the window / door contact to a Homematic IP radiator thermostats. 


You can even individually define the lowering temperature. The comfort temperature is automatically restored as soon as you close the window.


Flexible control possibilities

Use the window and door contact with magnet individually (in stand-alone mode) or as part of your smart home system.

Handy mit Auge

Everything in view when you leave the house

In the Homematic IP app you can always check whether all windows are closed - even when you're out and about. 

Icon Info 2

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

360 Grad 3D

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.

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!

Control access

Deter burglars

Homematic IP Alarmsirene außen an Hauswand

Use the app

Understand our products


05. July 2023

Travel with a safe feeling: How to protect your home with smart home technology

No one there to look after the house during the holidays? No problem, because your Smart Home protects itself: It keeps burglars away and lets you know immediately if something should happen.

Find out more

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. 

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!

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!
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.

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.



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



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.

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Specialist tradespeople

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

Händler Suche


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

Innovations, ideas, impulses: your news

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

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