Door/Window Contact II [+M] sensor by Bosch Smart Home — Opening detector, white, pack of 3

Wireless Door/Window Contact II [+M] by Bosch Smart Home is a compact opening detector designed to monitor doors and windows and to communicate open/close events to compatible Bosch Smart Home systems. The sensor is supplied in a pack of three and comes in white finish, enabling discreet installation on frames and sashes. It supports integration with Bosch automation routines to provide status notifications and trigger scenes based on contact state changes.

Advantages

The sensor offers reliable magnetic contact detection with low-profile housing for unobtrusive mounting. Its wireless operation simplifies installation without running cables, and compatibility with Bosch Smart Home systems ensures direct integration with central hubs and apps for real-time status updates. The pack of three provides coverage for multiple entry points, allowing coordinated presence simulation and automated responses when doors or windows are opened or closed.

Suitable for

• Monitoring front, back and balcony doors
• Securing windows and sliding doors
• Triggering scenes and automations in smart home setups
• Presence simulation while away from home
• Simple state reporting for home security systems

Key specifications

• Function: magnetic opening detector for doors and windows
• Color: white
• Quantity: pack of 3 sensors
• Connectivity: wireless communication with Bosch Smart Home system
• Mounting: surface-mounted on frame and sash with adhesive or screws
• Output: open/closed status notifications for automation and alerts

How to use

Position the sensor body on the fixed frame and the magnet on the moving part of the door or window so that both parts align when closed. Secure each part using the recommended adhesive or screws following the mounting instructions provided by the manufacturer. Pair each sensor with the Bosch Smart Home central unit or compatible gateway using the app to register the device and configure notifications or automation rules. After pairing, test each contact by opening and closing the door or window to confirm status updates are received in the app.

Recommendations

Install sensors on clean, dry surfaces and avoid placing them where large gaps or obstructions prevent close alignment between the sensor and magnet. For reliable wireless communication, ensure the Bosch Smart Home hub is located within the recommended range and avoid excessive metal or electronic interference between the sensor and the hub.