George Risk Industries Inc. M-184-BL Magnetic Contact Black

Product Description

The GEORGE RISK INDUSTRIES INC. M-184-BL is a black magnetic contact used in door, window, and perimeter security sensing applications. Magnetic contacts work in pairs: a magnet and a reed switch housing that detect separation or alignment between two surfaces, triggering an alarm or control signal when opened. The M-184-BL ships individually as a single unit and is finished in black to blend with dark-colored frames and surfaces. Security system installers and low-voltage alarm technicians are the primary trade professionals who specify and install this type of component.

This magnetic contact is suited for residential and light commercial security installations where a black finish is required for aesthetic match. It fits into standard door and window alarm circuits as a perimeter detection device. The black color makes it appropriate for dark-colored door frames, window sills, or cabinetry where a white or neutral contact would stand out. It is sold as an individual unit, making it convenient for single-point replacements or small-quantity service calls.

Key Features

• Black finish for low-visibility installation on dark frames and surfaces
• Single-unit packaging for individual replacement or spot repairs
• Designed for perimeter security and miscellaneous contact applications
• Compact magnetic contact form factor compatible with standard alarm wiring practices

Compatibility

Designed as an OEM-style replacement or addition for standard low-voltage magnetic contact security circuits used in residential and light commercial door and window alarm applications.

Installation Notes

Installation is performed by licensed low-voltage security or alarm technicians following applicable local codes and NEC low-voltage wiring guidelines. Disable or bypass the alarm panel zone before beginning work to prevent false triggers or panel faults. Mount the magnet and switch housing in close alignment on the door or window frame and sash per the manufacturer spacing requirements. Verify gap tolerance and circuit continuity with a multimeter before returning the zone to service.