Door lock sensor

See in the app if you've really locked the door. You can do that with the Homematic IP door lock sensor.

Keeps track of your door lock

Did I really lock the front door? The Homematic IP door lock sensor frees you once and for all from this nagging uncertainty, because the sensor detects at any time whether the door lock is locked or unlocked. Monitor your door in the Homematic IP app and check every opening and closing in the detailed event log.

Handy mit Auge

Always know whether the door is locked

When you're out and about, check via the Homematic IP app whether your front door is locked.


And every time the door is locked or unlocked, it's recorded in the Homematic IP app’s event log. With the "secured locking" function, you can also see whether the door is open or closed in conjunction with a door and window contact.

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Turns the key into a smart knob

Your key is transformed into a practical turning knob in no time with the door lock sensor. 


The key simply turns with the door lock sensor. This means it’s still very easy to lock and unlock the door by hand.

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Visual matching to your door fittings

Two caps in white and silver are included. 

Haus mit Schutzschild

Provides more security

Just combine the sensor into your security solution.  


When alarm mode is activated and when the door is unlocked

  • either Alarm mode is automatically deactivated or
  • an alarm is triggered.
Haken mit Zahnrad und Uhr

Easy retrofitting

Simply insert your key into the door lock sensor and both together on the inside of the door into the lock - without drilling or screwing and completely invisible from the outside.


Thanks to its universal design, the device fits on all common key types for standard lock cylinders with emergency function. To lock or unlock the door from the inside, simply turn the door lock sensor in the corresponding direction like a knob.

Does my key also fit in the door lock sensor?

We've developed a template so that you can be sure that your key also fits into the smart door lock sensor. Simply print it out in its original size and place your key in the space provided. 

Key template download

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


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.

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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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