Window and door contact – optical, anthrazite

Detect open windows in the app and link your heating or alarm function to the reliable window and door contact.

Window and door contact – optical, anthracite

Open or closed – you notice it

You feel comfortable in your own home, and you should also feel safe. How about a device that not only ensures the optimum indoor climate, but also your security? Homematic IP transforms your own four walls into a feelgood oasis with unquestionable security. The window contact detects open windows, switches off the heating or, if desired, also triggers an alarm.

Colour variants

anthracite

white

Monitoring for a secure home

Opening or closing of windows or doors is detected immediately and is displayed in the Homematic IP app.

In combination with a Homematic IP alarm siren (e.g. HmIP-ASIR-2) your home becomes even more secure. A loud alarm is automatically triggered when a window or door is opened.

Adaptation to the window frame

Match your window contact to the look of your plastic or wooden frame window.

Colour variants

anthracite

white

Fresh air without wasting energy

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

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

Händler finden

Installationspartner finden

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.

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!

Alarm siren – outdoor

Get a loud acoustic signal when someone tries to enter your home without permission. Install the smart outdoor alarm siren, and you’ll be able to keep an eye on everything via the app.

Radiator thermostat

Control your radiators the smart way - to ideally suit your daily routine. You can do this easily with the radiator thermostat.

Window and door contact – optical, plus

Detect open windows instantly and make your heating or alarm function even smarter. And do it easily via the window and door contact with its very long battery life.

Moderne Küche mit dunkelgrünen Schränken und Holzbar mit drei Hockern

06. September 2023

Es werde buntes Licht: So installieren Sie den LED Controller

Mit dem Homematic IP LED Controller – RGBW bringen Sie Farbe ins Spiel. Erfahren Sie Schritt für Schritt, wie Sie Ihre einfarbigen, mehrfarbigen oder Tuneable-White-LED-Strips mit dem Controller verbinden und in der Homematic IP App verwenden.

jetzt mehr lesen

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

15. Juillet 2022

Ne plus jamais transpirer : Refroidir plus intelligemment et plus efficacement avec Homematic IP

On peut aussi se passer de climatisation. Avec Homematic IP, vous gardez la tête froide en été sans avoir à craindre de grosses dépenses d'énergie. Voilà comment cela fonctionne.

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.

Person auf Sofa hält Smartphone mit geöffneter Homematic IP App, gemütliches Wohnzimmer.

The Homematic IP app

Configure all settings for your smart home in the Homematic IP app, which you can use to control, regulate and monitor your devices at any time. No personal data is collected except for the IP address.

learn more

Kommen Sie herein!

Jedes Smart Home ist so einzigartig wie die Menschen darin. Statten Sie unseren Referenzprojekten einen digitalen Besuch ab, lassen Sie sich inspirieren und entdecken Sie die vielfältigen Möglichkeiten von Homematic IP.

Use Cases (field_use_cases)

Old building charm, fully automated

The Wilhelminian villa resembles a small old schoolhouse, features a modern, loft-style interior, and was completely renovated in 2005. It has been smartly retrofitted exclusively with Homematic IP wireless products.

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.

All FAQs

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.

Service

Specialist tradespeople

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

Find a specialist tradesperson

Dealers

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

Find a dealer

Innovations, ideas, impulses: your news

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

View all news

Alle News ansehen

Use Cases (field_use_cases)

Homematic‑IP Universal Dimmereinsatz in moderner Wohnzimmerszene, rechts Produktvarianten

A real problem-solver for smart retrofitting: the Homematic IP Universal Dimmer Insert

The new universal dimmer for the Homematic IP smart home system can also be wired without a neutral conductor, making it ideal for retrofitting existing buildings.

01. September 2026

Invisible and intelligent: Compact flush-mounted switch actuators for smart retrofitting

The new Homematic IP switch actuators fit even in the smallest flush-mounted box. This turns any building into a smart home.

13. August 2026

New Energy Management features for the Homematic IP Home Control Unit

The EEBUS plugin for the Homematic IP Home Control Unit now supports the LPC and LPP functions for automatically limiting power consumption and power feed-in.

11. August 2026

Systematic security: fully integrated Homematic IP camera family now available

The new Homematic IP security cameras are part of a comprehensive smart home ecosystem. With just one app, users have access to all features and can keep an eye on their smart home at all times. Rigorous data protection and secure encryption ensure complete peace of mind.

31. July 2026

Product Variants

Window and door contact – optical

Window and door contact – optical

Order information

Product Name (Short)

HMIP-SWDO-A

Item Number

160027A0

EAN Code

4047976600274

Technical data

Supply voltage

1x 1.5 V LR03/micro/AAA

Current consumption

100 mA max.

Typical battery life

2 years (typical)

Degree of protection

IP20

Dimensions (W x H x D)

102 x 15 x 20 mm

Ambient temperature

5 to 35 °C

Weight

30 g (incl. batteries)

Radio frequency

868.0-868.6 MHz/869.4-869.65 MHz

Typ. open area RF range

300 m

Other

To enable operation, the device has to be connected with one of the following solutions: Homematic IP Access Point with free smartphone app and free cloud service, Central Control Unit CCU3 with the local user interface WebUI, Third-party solutions of partners

Function type

Sensor

Connection

Wireless

Color

anthracite

Unterstützungszeitraum für Security Updates: > 5 Jahre**

* Über den „Jetzt kaufen“-Button gelangen Sie direkt zur Produktdetailseite des jeweiligen Artikels im Onlineshop der ELV Elektronik AG. Bitte beachten Sie, dass unsere Produkte nicht ausschließlich dort angeboten werden. Homematic IP Produkte sind auch in weiteren Onlineshops, im stationären Handel und über zertifizierte Fachpartner erhältlich. Eine vollständige Übersicht finden Sie in unserer Händlersuche.

** Die eQ-3 AG garantiert für jedes Produkt einen durchgehenden Support bis fünf Jahre nach der offiziellen Abkündigung.