Reed switch door/window sensor bleBox reelswitch – magnetic contact sensor for open/closed state monitoring

bleBox reelswitch is a reed switch magnetic contact sensor designed to detect whether doors or windows are open or closed. The device produces a simple binary contact signal that can be connected to home automation controllers, alarm panels, or other monitoring equipment to report the state of an access point. Its compact form factor and basic functionality make it suitable for straightforward state detection tasks where a reliable open/closed input is required.

Advantages

The sensor offers a compact and unobtrusive design that is easy to install on door and window frames. It delivers a clean binary signal for reliable state detection with minimal power requirements and no complex configuration. The reed switch mechanism provides mechanical durability for long-term monitoring and supports integration with a wide range of automation and security systems.

Suitable for

• Monitoring doors and windows for open/closed state
• Triggering automation scenes when an access point is opened or closed
• Basic intrusion or access reporting in home or small commercial alarm systems
• Use as a binary input for controllers, relays, or security panels

Key specifications

• Operating principle: reed switch (magnetic contact)
• Output type: binary contact (normally open / normally closed depending on mounting)
• Mounting: surface-mount on door or window and corresponding frame
• Environmental suitability: indoor use for standard residential and commercial environments
• Physical design: compact sensor and magnet pair for minimal intrusion on frames

How to use

Mount the sensor body on the door or window frame and align the magnet on the moving sash so the two parts are close when closed. Connect the binary contact wires to the input terminals of a compatible home automation controller, alarm panel, or monitoring device following the controller's wiring conventions. Verify correct operation by opening and closing the door or window and observing the corresponding state change in the connected system. No advanced configuration is required beyond physical alignment and electrical connection.

Usage recommendations

Place the sensor pair where they remain aligned during normal operation and avoid locations exposed to excessive moisture or direct outdoor weather. For best results, follow the mounting distances specified by the system integrator or installer and test the contact state after installation to ensure reliable reporting and proper integration with automation or alarm logic.