GRI 4532C-48 48" Miniature Overhead Door Switch Set, Gap up to 1/2", Open/closed Loop, SPDT, Reed Form, 5W

Protect overhead doors and loading bays with the George Risk Industries 4532C-48 miniature overhead door switch — built for reliable intrusion monitoring in commercial and industrial environments. This magnetic contact switch set combines a hermetically sealed cast-aluminum case with an SPDT (Form C) reed contact to deliver durable, weather-resistant performance for access control, alarm, and surveillance systems. The 4532C-48 ships with an extended 48" stainless-steel armored cable and a universal magnet for flexible mounting, making installations on angled or loose overheads fast and secure. Designed for supervised systems, it supports open/closed loop monitoring and includes End-of-Line (EOL) resistor compatibility to simplify integration with modern alarm panels. The low-profile footprint minimizes exposed hardware and tamper risk while providing consistent, long-term operation backed by a lifetime limited warranty. Ideal for warehouses, docks, storefronts, and perimeter security applications — specify the George Risk 4532C-48 magnetic contact for dependable door position monitoring and seamless integration with your security and surveillance systems. Order now to secure your access control setup.

• Rugged protection for overhead doors: hermetically sealed cast-aluminum housing resists moisture and corrosion to keep your security circuits reliable.
• Flexible installation with extended 48" stainless-steel armored cable and universal magnet for hard-to-reach or angled mounts.
• Fail-safe SPDT (Form C) reed contact supports open/closed loop monitoring and includes EOL resistor compatibility for supervised intrusion systems.
• Low-profile, miniature design fits tight spaces and reduces tampering points while providing consistent switch performance.
• Lifetime limited warranty provides long-term assurance for commercial access control, surveillance, and perimeter security projects.