Magnasphere MSS-302C-W | Recessed Wired Security Sensor, Concealed Mount, White, 30 VDC

In response to a request from the U. S. Department of State, MAGNASPHERE has introduced both a 1 in. concealed and a surface-mount version of multi-ple switch contacts for non-high-security installations. Each style offers individual contacts made with MAGNASPHERE BMS switch technology in two and three contact configurations and both open and closed-loop variations, depending on installation requirements. The MSS-300 Series provides a single switch solution for monitoring multi-ple systems (Intrusion Detection and Access Control) and for home automation applications. Older style security contacts have been made with a decades-old technology call the Reed switch, which have three inherent weaknesses when used as security contacts. They are (1) easily defeated with magnets (2) prone to permanent contact weld failure (lightning, power surges) and (3) fragile (made mostly of glass, they are subject to damage even when packaged as security contacts).