Press release #Smart Home

The New Door/Window Contact II and Door/Window Contact II Plus

Burglary protection and energy saving in one

  • Everything in view: Reliably detect open doors and windows and shows their current status in the app.
  • Efficient heating: Detect open windows and adjust the temperature accordingly via smart radiator thermostats.
  • Smart burglary protection: Trigger burglar alarms as part of the alarm system if doors and windows are opened without authorisation.
  • Clever control element: Easily activate scenarios and actions, and conveniently pause the alarm system via integrated button.
  • Additional vibration sensor: The Door/Window Contact II Plus already triggers an alarm when burglars first attempt to break in.

Frank Bauderer


Stuttgart – Combining security and energy efficiency with a new design, the Door/Window Contact II and the Door/Window Contact II Plus are the latest additions to the Bosch Smart Home. Their sensors reliably detect open doors and windows, and trigger an alarm in the event of a break-in whenever the alarm system is activated. In combination with smart thermostats, the Door/Window Contacts also prevent unnecessary energy loss when ventilating, especially during the cold autumn and winter months, thus ensuring sustainable and energy-saving heating. In addition to the new design and the familiar functions, the new Door/Window Contacts offers many other options for making a home even safer and more convenient. The Door/Window Contact II Plus offers built-in vibration detection to further enhance security.

Security and Energy Efficiency in One

Like their predecessor, the new Door/Window Contact II and II Plus are versatile assistants in the Bosch Smart Home. In addition to the status display in the app, they also help residents to heat the home sustainably and efficiently. In combination with smart radiator thermostats, the preselected temperature in the room is automatically lowered as soon as a window is opened for ventilation. This avoids unnecessary heating, thus simultaneously reducing the burden on the owner’s budget and the natural environment.

In addition, the Door/Window Contact II and II Plus serve as important components of the Bosch Smart Home alarm system. As soon as the system is activated, the Door/Window Contacts warn of open doors and windows via a message in the app, thus helping to prevent break-ins. In the event of a break-in, the Door/Window Contacts immediately trigger an alarm as soon as doors or windows are opened without authorisation. The alarm is forwarded to the networked smoke detectors and Twinguards, which sound a loud siren. At the same time, integrated Philips Hue or LEDVANCE lights flash red, integrated Bosch Smart Home cameras are activated, and the residents are notified via app so they can react quickly.

Furthermore, the Door/Window Contact II and II Plus also serve as clever control elements in the Bosch Smart Home. This is ensured by a new button on the top of the devices. The app can individually assign specific actions or scenarios to the button, which can then be triggered by either a long or short press on the button. For example, residents can program a Door/Window Contact II attached to the front door to trigger their “leave home” scenario, which activates the alarm system, switches off the lights, lowers the heating, and locks the front door soon afterwards via a smart door lock. If residents want to open a window to get some fresh air at night without triggering the alarm when the alarm system is activated, a double click on the button of the Door/Window Contact II or II Plus is all it takes to temporarily pause the alarm system for a single opening and closing of a window.

The Right Door/Window Contact for Every Situation

Both versions of the Door/Window Contact II or the Door/window Contact II Plus detect the unauthorised opening of windows and doors. The Door/Window Contact II Plus provides even more security because it triggers an alarm at the slightest vibration when burglars first begin tampering with a window – and even before they can get it open. The built-in vibration detector makes the Door/Window Contact II Plus particularly well-suited for outdoor use because the vibration sensor can also detect the attempted theft of the Door/Window Contact. The sensitivity of the vibration sensor can be adjusted in five stages to suit conditions at the location where it is installed.

Thanks to its tiny 3mm small magnet, the standard model of the

Door/Window Contact II is especially suitable for inconspicuous mounting. Both versions of the new Door/Window Contact II are available in white and anthracite, so they blend discreetly into any residential surroundings.

Further Features

  • Protection class IP45 enables both indoor and outdoor use
  • Convenient status query via voice control using Amazon Alexa or Google Assistant
  • Long service life thanks to 3V lithium battery
  • Quick and easy installation thanks to included adhesive product and intuitive step-by-step instructions in the app


From September 2022 in Germany, Austria, France, Spain, Italy, Great Britain, the Netherlands, Belgium and Luxembourg. From November 2022 in Portugal, Sweden, Denmark, Norway, Finland and Switzerland.

Prices in Germany

  • Door/Window Contact II (white or anthracite): €42.95 RRP incl. 19% VAT
  • Door/Window Contact II Multipack (3 pieces, white): €119.95 RRP incl. 19% VAT
  • Door/Window Contact II Plus (white or anthracite): €52.95 RRP incl. 19% VAT
  • Door/Window Contact II Plus Multipack (2 pieces, white): €99.95 RRP incl. 19% VAT


A Bosch Smart Home Controller and an installed Bosch Smart Home App are required in order to use the Door/Window Contact II and Door/Window Contact II Plus.

About Bosch

The Bosch Group is a leading global supplier of technology and services. It employs roughly 429,000 associates worldwide (as of December 31, 2023). The company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. With its business activities, the company aims to use technology to help shape universal trends such as automation, electrification, digitalization, connectivity, and an orientation to sustainability. In this context, Bosch’s broad diversification across regions and industries strengthens its innovativeness and robustness. Bosch uses its proven expertise in sensor technology, software, and services to offer customers cross-domain solutions from a single source. It also applies its expertise in connectivity and artificial intelligence in order to develop and manufacture user-friendly, sustainable products. With technology that is “Invented for life,” Bosch wants to help improve quality of life and conserve natural resources. The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. Bosch’s innovative strength is key to the company’s further development. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which nearly 48,000 are software engineers.

The company was set up in Stuttgart in 1886 by Robert Bosch (1861–1942) as “Workshop for Precision Mechanics and Electrical Engineering.” The special ownership structure of Robert Bosch GmbH guarantees the entrepreneurial freedom of the Bosch Group, making it possible for the company to plan over the long term and to undertake significant upfront investments in the safeguarding of its future. Ninety-four percent of the share capital of Robert Bosch GmbH is held by Robert Bosch Stiftung GmbH, a charitable foundation. The remaining shares are held by Robert Bosch GmbH and by a corporation owned by the Bosch family. The majority of voting rights are held by Robert Bosch Industrietreuhand KG. It is entrusted with the task of safeguarding the company’s long-term existence and in particular its financial independence – in line with the mission handed down in the will of the company’s founder, Robert Bosch.

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