Magnetic reed contact sensor Yotogi FMV102BI for wooden doors 24 mm NC

The Yotogi FMV102BI is a wired magnetic reed sensor designed for wooden doors. It is a surface-mounted contact with a compact 24 mm form factor and a normally closed (NC) configuration. The sensor detects door open and closed states and is intended for use with alarm systems, access control panels and building automation where a discrete, reliable door state input is required.

Advantages

The sensor's NC reed contact provides stable, fail-safe detection for wired security circuits. Its compact 24 mm size and surface-mount design enable installation on narrow door frames or visible wooden door surfaces without major modifications. Constructed for standard security wiring, the unit is compatible with common alarm and control panels and supports straightforward integration into residential and commercial systems.

Suitable for

• Wired intrusion alarm systems on wooden doors
• Access control inputs for doors where surface mounting is required
• Home and small business automation that needs door state monitoring
• Retrofit installations where minimal door/frame modification is preferred

Key specifications

• Contact type: Normally closed (NC) magnetic reed
• Mounting: Surface-mounted for door or frame
• Form factor: 24 mm compact sensor body
• Connection: Wired terminals for standard security wiring
• Suitable door material: Wooden doors and wooden frames
• Operating function: Detects open/closed door state for alarm or control systems

How to use

Mount the sensor body and the magnet on the door and frame at matching positions so that the magnet aligns with the reed switch when the door is closed. Secure the surface-mounted parts with screws or adhesive as appropriate for the door material. Connect the sensor wires to the alarm panel or control input according to the panel's wiring diagram for NC contacts, observing polarity and any required tamper or end-of-line resistor configuration. Test the sensor by opening and closing the door to confirm the input status changes as expected.

Usage recommendations

Install the sensor on clean, dry surfaces and ensure the magnet and reed body are aligned within the manufacturer's recommended gap for reliable operation. Use appropriate screw length or adhesive for wooden surfaces to avoid damaging the door. For integration with alarm panels, follow the panel manufacturer's wiring and resistor recommendations for NC contacts to maintain proper supervision and tamper detection.