Homematic IP Contact Interface 1-Factor, Under-Ceiling, White

Homematic IP Contact Interface 1-Factor – Compact Under-Ceiling Smart Home Switch

The Homematic IP Contact Interface 1-Factor is a wireless switch input module for smart home installations. It connects standard contact-based sensors and switches to the Homematic IP system, enabling wireless control and monitoring of doors, windows, blinds, and other contact-based devices.

• 1-factor switch input for reliable contact detection
• Under-ceiling installation keeps the device hidden and protects it from physical damage
• Wireless system communication via IPv6 protocol for seamless smart home integration
• White finish blends discreetly into light-coloured ceilings and walls

What sets the Homematic IP Contact Interface apart

Unlike wired switch modules, this interface operates entirely wirelessly, eliminating the need for additional cabling to the central smart home controller. The compact under-ceiling design means the module is installed out of sight, preserving the clean appearance of the room while remaining fully accessible for maintenance.

Ideal for

Homeowners and installers looking to integrate contact-based sensors into a Homematic IP smart home without visible wiring. Particularly suited for retrofit projects where existing switch circuits need to be monitored wirelessly, such as window contact sensors, door magnets, or blind position switches.

Application of Homematic IP Contact Interface

1. Mount the interface module on the ceiling using the included fixing hardware
2. Connect the contact sensor or switch to the module terminals
3. Pair the module with the Homematic IP central unit via the wireless radio interface
4. Assign the contact input to a desired smart home program or automation scenario