George Risk Industries MF-875 Rare Earth Magnet Contact

Product Description

The George Risk Industries MF-875 is a rare earth magnet contact designed for use in security and sensing applications. This small-format magnetic contact operates by detecting the presence or absence of an adjacent magnet, triggering an open or closed circuit state. At 0.125 inches by 0.375 inches by 0.875 inches, the MF-875 is suited for installations where space is limited or a low-profile form factor is required. Licensed electricians and security systems technicians are the typical installers for this type of component.

The MF-875 is used in door, window, and access-point monitoring setups found in residential and light commercial security systems. Its rare earth magnet construction provides a stronger magnetic field relative to its size compared to standard alnico or ceramic contacts, making it appropriate for applications where tighter gap tolerances or more reliable actuation is needed. It is sold as an individual unit.

Key Features

• Rare earth magnet construction for strong magnetic field in a compact form factor
• Dimensions: 0.125 x 0.375 x 0.875 inches for low-profile installations
• Sold individually, unit of measure is each
• Suitable for door, window, and access-point sensing applications

Compatibility

Designed as an OEM-style replacement or direct-install magnetic contact for residential and light commercial security and access-monitoring systems requiring a rare earth magnet in the 0.125 x 0.375 x 0.875 inch form factor.

Installation Notes

Installation of magnetic contacts is typically performed by licensed electricians or certified security system technicians. De-energize the circuit and confirm the system is powered down before wiring or mounting. Verify gap tolerance between the magnet and the switch reed element per the system manufacturer's requirements before finalizing mounting position. Follow all applicable local electrical codes and security system installation standards during installation.