Window and door contact – optical

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

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
white
white
anthracite
anthracite
Haus mit Schutzschild

Monitoring for a secure home

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

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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.

Fenster mit Homematic IP Logo

Adaptation to the window frame

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

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Two caps in white and brown are included for this.

Colour variants
white
white
anthracite
anthracite
Blatt

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.

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

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.

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!

Control heating

find out more

Save energy

find out more

Use the app

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Connect devices together

find out more

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. 

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!
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.

FAQ

FAQs

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

Service

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.

Installateur Suche

Specialist tradespeople

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

Händler Suche

Dealers

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. 

View all news

Homematic IP certified by VDE for the eighth time in a row
- Homematic IP is once again setting standards in the areas of security and data protection: the solution from German manufacturer eQ-3 is the first smart home system to be certified by the VDE for protocol, IT and data security for the eighth time in a row.
27. September 2024
Homematic IP at Interclima 2024
Premiere - Get to know Homematic IP and its latest product innovations for the first time at INTERCLIMA 2024. From 30 September to 3 October 2024, the German smart home specialist eQ-3 will be showcasing exciting new products for the Homematic IP system at stand K090 in hall 3 at INTERCLIMA 2024.
05. September 2024
The smartest Homematic IP control unit ever
With the Homematic IP Home Control Unit, the German smart home specia-list eQ-3 presents a powerful control unit that offers simplicity, convenience, security and an unprecedented level of flexibility. Also exciting: the design! The new Home Control Unit attracts everyone's attention and perfectly combines functionality with an elegant look.
02. September 2024
Experience Homematic IP product innovations at IFA 2024
IFA is celebrating its 100th anniversary and eQ-3 is joining in the celebrations. From September 6 to 10, 2024, the German smart home experts will be showcasing exciting new products for the popular Homematic IP system at stand 210 in hall 1.2.
12. August 2024
New Homematic IP app released
eQ-3 is releasing a completely new version of the free Homematic IP app, making it even easier to control your smart home. The proven, intuitive operating concept of the previous app has been retained and optimized with new features and an improved user interface.
09. July 2024
Homematic IP expands product range in elegant anthracite
It doesn't always have to be white: The anthracite thermostats and wall-mounted remote controls from Homematic IP blend perfectly into modern living environments and create an exciting contrast to any wall color. With the expanded product range of the smart home system in elegant anthracite, Homematic IP now opens up even more possibilities for interior design enthusiasts.
08. July 2024
Update for the open beta of the new Homematic IP app
Interested users have been able to try out the new Homematic IP app in a beta version since April. The pre-release version is now receiving an update that improves a popular feature, among other things.
04. June 2024
Homematic IP showcases smart home innovations at Light + Building 2024
At Light + Building in Frankfurt (March 3-8, 2024 / Hall 12.1. Stand E21), eQ-3 will be presenting its expanded product portfolio of the Homematic IP smart home system. The German manufacturer will be showcasing numerous innovations on around 200 square meters and will be focusing on the important area of energy management for the first time.
03. March 2024
Product Variants

Window and door contact – optical

Order information

Product Name (Short)
HMIP-SWDO
Item Number
157857A0
EAN Code
4047976578573

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

Window and door contact - made easy | Homematic IP

Tutorial: Heating solution easily extended with a window contact | Homematic IP

General

Homematic IP User Guide

Version: September 2024

22.77 MB
Overview of Homematic IP QR Code Stickers
50.09 KB

Operating manuals

Here you can download operating instructions for our Homematic IP products.

Operating manual Door / Window Contact – optical

Short description: HmIP-SWDO-2 / HmIP-SWDO-A | Product reference: 157857A0 / 160027A0

 

1.66 MB

Product data sheets

See our data sheets for features and technical specifications of our products.

Datasheet Window and door contact – optical

Short description: HmIP-SWDO-2 / HmIP-SWDO-A | Product reference: 157857A0 / 160027A0

1.44 MB

Overviews and comparisons

With our overviews, you can quickly find the right Homematic IP product for your needs.

Comparison of Homematic IP Window / Door Contacts

Version V1.4 (09/2024)

199.88 KB

Declarations of conformity

All EU declarations of conformity for download.

Declaration of conformity Window / Door Contact – optical

Short description: HmIP-SWDO | Product reference: 140733AxB

40.95 KB
Declaration of conformity Window and door contact – optical

Short description: HmIP-SWDO-2 | Product reference: 157857AxA / 157857AxB

105.99 KB