George Risk Industries Inc. MM-600 Magnetic Contact Sensor

Product Description

The GEORGE RISK INDUSTRIES INC. MM-600 is a rare earth magnetic contact sensor designed for use in security and access-control systems. It uses a rare earth magnet assembly to deliver reliable reed-switch actuation with a compact 5/8-inch diameter form factor. Electricians and low-voltage security technicians install this type of contact to monitor door, window, or panel positions in both residential and light commercial applications. The small diameter allows installation in tight frames and narrow mounting surfaces where standard contacts may not fit.

This contact sensor is suited for door and window intrusion detection circuits, access-control door monitoring, and general-purpose magnetic reed applications. Its compact size makes it appropriate for residential security panels as well as light commercial entry points. Installation is typically performed by licensed low-voltage electricians or alarm system technicians following local codes and manufacturer wiring guidelines.

Key Features

• Rare earth magnet construction for strong, consistent reed-switch actuation
• 5/8-inch diameter form factor fits narrow door and window frames
• Sold individually, allowing single-unit replacement or new installation
• Designed for miscellaneous contact applications in security and access-control systems

Compatibility

Designed as an OEM-style magnetic contact sensor for use in residential and light commercial door, window, and panel monitoring circuits compatible with standard low-voltage security and access-control systems.

Installation Notes

Installation should be performed by a qualified low-voltage electrician or licensed alarm technician. De-energize the security panel and discharge any backup power before wiring the contact. Align the magnet and sensor halves within the gap tolerance specified by the system panel to ensure reliable actuation. Follow local electrical codes and the panel manufacturer guidelines for contact wiring.