George Risk Industries 120T-12-B Recessed Magnetic Contact

Product Description

The George Risk Industries 120T-12-B is a recessed magnetic contact switch designed for door and window security applications. This switch mounts flush into a drilled hole in the door frame or window sash, keeping the sensing element hidden from view. When the door or window opens, the magnetic field breaks and the switch changes state, signaling the connected alarm or access control system. The 120T-12-B features a 3/8 inch magnet and a brown housing finish, making it suitable for installations where the hardware should blend with wood or painted trim surfaces. Electricians and alarm technicians are the primary installers of this device.

This recessed contact is used in residential and light commercial security systems, access control panels, and door or window monitoring circuits. The brown color makes it a common choice for wooden door frames, cabinetry, and interior trim work where a discreet, low-profile installation is required. The 3/4 inch body diameter suits standard recessed mounting applications. It ships as a single unit and is compatible with conventional alarm panel input zones.

Key Features

• Recessed design mounts flush for a concealed, low-profile installation
• 3/8 inch magnet included for reliable actuation
• Brown housing finish blends with wood and painted trim surfaces
• 3/4 inch body diameter fits standard recessed contact hole sizes
• Single-unit packaging for individual zone installations

Compatibility

Designed as an OEM-style recessed magnetic contact for use with standard residential and commercial alarm panel input zones that accept normally closed or normally open dry contact inputs.

Installation Notes

Installation is typically performed by a licensed electrician or alarm technician. Before installation, de-energize the alarm panel or access control system and follow all applicable local codes. Drill the appropriate hole diameter to accept the 3/4 inch body before pressing the switch into the frame. Ensure the magnet and switch body are aligned within the manufacturer-specified gap distance to guarantee reliable actuation.