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 Overview Comparison Technical data & downloads Home All Products 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 Image Monitoring for a secure home Opening or closing of windows or doors is detected immediately and is displayed in the Homematic IP app. more 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. Image Adaptation to the window frame Match your window contact to the look of your plastic or wooden frame window. more Two caps in white and brown are included for this. Colour variants white white anthracite anthracite Image 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. more 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 Image 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 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 find out more Connect devices together find out more 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. 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. The Homematic IP appConfigure 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 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. Image FAQs This is where you’ll find the most important questions and our answers about our smart home solutions. All FAQs Image 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 Image 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 Image 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 Filter by type Artikel Social Media Posting - Any - Blog Blog International Social media posts Firmware Hinweis News Reference project Access Points & Control Units Heating & climate control Shutter control Light Security & alarm Access Energy management Weather & environment International versions Compatible systems Accessories - Any - Experience comfort Save money Live safely and securely Control away from home Coming home Enjoy winter Build smart Have fun with technology Use Cases (field_use_cases) Look forward to Christmas Connect devices together Understand our products Give feedback Use the app Control heating Save energy Control lighting Schedule shade Monitor the building Deter burglars Detect fires Prevent water damage Control access Ablaufdatum Fachpartner FALMOT C8 Nuovo fio Heizen HmIP-ADA-DL-KA HmIP-ADA-DL-KB HmIP-ADA-DL-KC HmIP-ADA-DL-KD HmIP-ADA-DL-KE HmIP-ADA-DL-KF HmIP-ADA-DLP-R HmIP-ADA-DLP-R-A HmIP-ADA-FE HmIP-ADA-GN HmIP-ADA-GN-I HmIP-ADA-LG HmIP-ADA-SE HmIP-ADA-SE2 HmIP-BBL-2 HmIP-BBL-I HmIP-BDT-I HmIP-BPS-2 HmIP-BRA-A HmIP-BRC2-2 HmIP-BROLL-2 HmIP-BSM-I HmIP-BWTH-24 HmIP-BWTH-A hmip-dbb HmIP-DLD-A HmIP-DLD-S HmIP-DLP HmIP-DLP-A HmIP-DLP-AS HmIP-DLP-WS HmIP-DS55-A HmIP-ESI-GAS HmIP-ESI-IEC HmIP-ESI-LED HmIP-ESI-Linky HmIP-eTRV-3 HmIP-eTRV-B-2 HmIP-eTRV-C-2 HmIP-eTRV-CL HmIP-eTRV-E-A HmIP-eTRV-F HmIP-FALMOT-C8 hmip-fdc hmip-flc HmIP-FSI16 HmIP-FSI16-2 HmIP-GF1-A HmIP-GF2 HmIP-GF2-A HmIP-GF3 HmIP-GF3-A HmIP-HAP-A HmIP-HAP2 HmIP-HAP2-A HmIP-HCU1 HmIP-HCU1 HmIP-HCU1-A HmIP-KRC4-2 HmIP-KRCA-2 HmIP-KRCK-2 HmIP-LS1 HmIP-LSS hmip-mp3p HmIP-P-DRG-DALI HmIP-PDT-A HmIP-PDT-CH HmIP-PDT-PE HMIP-PS-2 HmIP-PS-2-A HmIP-PSM-2-A HmIP-PSM-CH-2 HmIP-PSM-PE-2 HmIP-PSMCO HmIP-RGBW HmIP-SK20 HmIP-SK21 HmIP-SK22 HmIP-SK23 HmIP-SK24 HmIP-SK25 HmIP-SK26 HmIP-SK27 HmIP-SK28 HmIP-SK29 HmIP-SK30 HmIP-Sk9-2 HmIP-SMI55-2-A HmIP-SMI55-A HmIP-SMO230 HmIP-SMO230-A HmIP-SMO230A HmIP-STH-A HmIP-STHD HmIP-STHD-A HmIP-STV HmIP-SWD-2 HmIP-SWDM-2 HmIP-SWDO-2 HmIP-SWDO-A HmIP-SWDO-PL-2 HmIP-SWSD-2 HmIP-SWSD-2-NL HmIP-WGD-PL HmIP-WGS HmIP-WGS-A HmIP-WGS-A-F HmIP-WGS-F HmIP-WGT HmIP-WGT-A HmIP-WGT-A-F HmIP-WGT-F HmIP-WGTC HmIP-WGTC-A HmIP-WGTC-A-F HmIP-WGTC-F HmIP-WLAN-HAP-B HmIP-WRC2-2 HmIP-WRC2-A HmIP-WRC2-A-2 HmIP-WRC6-A HmIP-WSM HmIP-WSS HMIP-WTH HmIP-WTH-1 HmIP-WTH-A HmIP-WTH-B-2 HmIP-WTH-B-A HmIP-WUA HmIP-WWRC6-A HmIPW-AV HmIPW-AV-CO2 HmIPW-AV-RH HmIPW-AV-SVN HmIPW-BC10 HmIPW-BC22 HmIPW-BC39 HmIPW-BC62 HmIPW-DRPS4 HmIPW-P-DRAVC HmIPW-SCTHD HmIPW-SMI55-A HmIPW-SMO230 HmIPW-SMO230-A HmIPW-STH-A HmIPW-STHD-A HmIPW-WGD HmIPW-WGD-PL HmIPW-WRC2-A HmIPW-WRC6-A HmIPW-WTH-A IP-SWDO-2 Menü Container-Termine Menü Messen Menü Messen Int. Menü Online-Seminare Menü ProVertrieb-Termine Menü Roadshow-Termine Menü Roadshow-Termine PRO Neuheiten PartnerHub Referenz-1 Referenz-2 Referenz-3 Showtruck Schulungen HmIIP-APP HmIP-BS2 HmIP-FWI HmIP-PS-2 HmIP-PSM-2 HmIP-SK1 HmIP-STHO-A HmIP-WKP HmIPW-FAL24-C10 HmIPW-FAL24-C6 JRB21_1 JRB21_2 JRB21_3 JRB21_4 JRB21_5 Logo Büscher News HmIP-eTRV-2-UK HmIP-FAL24-C10 HmIP-FAL230-C6 HmIP-FAL230-C10 HmIP-FAL HmIP-eTRV-E-S HmIP-eTRV-E HmIP-eTRV-C-TP HmIP-eTRV-C HmIP-eTRV-B HmIP-eTRV-2 HmIP-FAL24-TR HmIP-DS55 HmIP-DRSI4 HmIP-DRSI1 HmIP-DRDI3 HmIP-DRBLI4 HmIP-DRBLI HmIP-DRA HmIP-DLS HmIP-DLD HmIP-DC HmIP-FAL24-C6 HmIP-FALMOT-C12 HmIP-CCU3 HmIP-KRCK HmIP-PSM-PE HmIP-PSM-IT HmIP-PSM-CH HmIP-PSM HmIP-PS HmIP-PDT-UK HmIP-PDT HmIP-PCBS HmIP-MOD-HO HmIP-MIOB HmIP-KRCA HmIP-FBL HmIP-KRC4 HmIP-HAP-UK HmIP-HAP HmIP-FSM16 HmIP-FSM HmIP-FSI16 HmIP-FROLL HmIP-FDT HmIP-FCI6 HmIP-FCI1 HmIP-DC HmIP-BWTH24 Amazon EQ3-ADA-DW EQ3-ADA-KO EQ3-ADA-J2 EQ3-ADA-J2 EQ3-ADA-J1 EQ3-ADA-J1 EQ3-ADA-GS EQ3-ADA-G55 EQ3-ADA-EJ EQ3-ADA-EJ EQ3-ADA-BJ EQ3-ADA-ME EQ3-ADA-BJ EQ3-ADA-B2 EQ3-ADA-B2 EQ3-ADA-B1 EQ3-ADA-B1 EQ3-ADA CC-Sys-O-Cy Auszeichnung App EQ3-ADA-KO EQ3-ADA-ME HmIP-BWTH HmIP-ASIR-2 HmIP-BSM HmIP-BSL HmIP-BRU HmIP-BROLL HmIP-BRC2 HmIP-BRA HmIP-BPS HmIP-BDT HmIP-BBL HmIP-ASIR-O HmIP-Access Point EQ3-ADA-S HC+ HAP1-HCP Geld sparen Ezeviz etrv-e eSports ESB1 EQ3-RFA EQ3-MK-FE EQ3-ADA-VA80 HmIP-PSM-UK HmIP-RC8 HmIP-SCI HmIP-SCTH230 HmIP-SF-2 HmIP-SK12 HmIP-SK13 HmIP-SK14 HmIP-SK15 HmIP-SK16 HmIP-SK17 HmIP-SK4 HmIP-SK7 HmIP-SK9 HmIP-SLO HmIP-SMI HmIP-SMI55-2 HmIP-SMO HmIP-SMO-2 HmIP-SMO-A HmIP-SMO-A-2 HmIP-SPDR HmIP-SPI HmIP-SRD HmIP-SRH HmIP-STH HmIP-STHD HmIP-STHO HmIP-SWD HmIP-SWDM HmIP-SWDO HmIP-SWDO-I HmIP-SWDO-PL HmIP-SWO HmIP-SWO-B HmIP-SWO-PL HmIP-SWO-PR HmIP-SWSD HmIP-VDMOT HmIP-WGC HmIP-WHS2 HmIP-WLAN-HAP HmIP-WRC2 HmIP-WRC6 HmIP-WRCC2 HmIP-WRCR HMIP-WTH-2 HmIP-WTH-B HmIPW-BC HmIPW-BCC HmIPW-BRC2 HmIPW-DRAP HmIPW-DRBL4 HmIPW-DRD3 HmIPW-DRI16 HmIPW-DRI32 HmIPW-DRS4 HmIPW-DRS8 HmIPW-FAL HmIPW-FAL230-C10 HmIPW-FAL230-C6 HmIPW-Falmot-C12 HmIPW-FIO6 HmIPW-SMI55 HmIPW-SPI HmIPW-STH HmIPW-STHD HmIPW-WRC2 HmIPW-WRC6 HmIPW-WTH in eigener Sache kompatible Produke Kooperationen Mediola Messen & Events nach Hause Novoferm Produktinfos s Smart bauen Sonstiges Spaß an Technik Sprachsteuerung Startseite Szenario Test Updates Zertifizierungen Filter by category Auszeichnung in eigener Sache Kooperationen Messen & Events Produktinfos Sonstiges Updates Zertifizierungen Open to more. Secure at its core. – Partner Plugins for the Homematic IP Home Control Unit Under the motto “Open to more. Secure at its core.”, eQ-3 is expanding the plugin functionality of the Homematic IP Home Control Unit. Partner Plugins allow third-party providers to connect their smart solutions directly to the Homematic IP system. 06. October 2026 Important Information for Users of the Video Doorbell and Outdoor Camera, rechargeable An update to the cloud security certificate on or after September 20, 2026, will require a firmware update. 18. September 2026 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 Show more Technical data Technical specifications and data for our Homematic IP products at a glance. Technical Data Downloads Product Variants Window and door contact – optical 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 Function type Sensor Connection Wireless Color white Homematic IP User Guide Version: August 20268.09 MB Overview of QR code stickers 1.46 MB Operating manual Door / Window Contact – optical Short description: HmIP-SWDO-2 / HmIP-SWDO-A | Product reference: 157857A0 / 160027A0 1.66 MB Datasheet Window and door contact – optical Short description: HmIP-SWDO-2 / HmIP-SWDO-A | Product reference: 157857A0 / 160027A01.44 MB Comparison of Homematic IP Window / Door Contacts Version V1.5 (09/2024)213.34 KB Declaration of conformity Window / Door Contact – optical Short description: HmIP-SWDO | Product reference: 140733AxB40.95 KB Declaration of conformity Window and door contact – optical Short description: HmIP-SWDO-2 | Product reference: 157857AxA / 157857AxB105.99 KB
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.
Open to more. Secure at its core. – Partner Plugins for the Homematic IP Home Control Unit Under the motto “Open to more. Secure at its core.”, eQ-3 is expanding the plugin functionality of the Homematic IP Home Control Unit. Partner Plugins allow third-party providers to connect their smart solutions directly to the Homematic IP system. 06. October 2026
Important Information for Users of the Video Doorbell and Outdoor Camera, rechargeable An update to the cloud security certificate on or after September 20, 2026, will require a firmware update. 18. September 2026
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
