GRI 400 Industrial Surface Mount Switch Set, 1-1/2" Standard Gap, 10W, 160VDC, 0.40A, Closed Loop, N/O, and Concealed Screw Terminals, Brown

Optimize perimeter and door security with the George Risk Industries GRI 400 industrial surface mount magnetic contact. Designed for commercial and industrial security, this brown surface-mount magnetic contact delivers tamper-resistant monitoring thanks to concealed screw terminals and a recessed housing that protects wiring and connections. The GRI 400's normally-open, closed-loop design provides reliable signals for alarm, access control and surveillance systems, while the 1.5-inch standard gap accommodates common steel door and frame conditions to reduce alignment headaches during installation.

Built for durability, the contact is rated for 10W at 160VDC (0.40A) and carries a UL 10C fire rating, backed by a lifetime warranty for long-term peace of mind. Installers benefit from included spacers, covers and mounting hardware, plus optional E.O.L. resistors or diodes and private labeling for tailored system integration. Ideal for commercial doors, gates and service entrances, the GRI 400 simplifies deployment in monitoring and security networks. Add the George Risk GRI 400 to your access control or surveillance project for dependable, low-voltage door monitoring—order or request a quote today.

• Tamper-resistant installation: concealed screw terminals recessed into the back reduce tampering and improve long-term reliability.
• Reliable door monitoring: closed-loop N/O contact and industrial-grade performance ensure consistent security and surveillance signals.
• Wide compatibility: 1.5-inch standard gap accommodates steel commercial and industrial door/frame conditions for fewer alignment issues.
• Easy surface-mount installation: includes spacers, covers and mounting hardware to speed deployment on access control and alarm systems.
• Built for harsh environments: steel construction, UL 10C fire rating and lifetime warranty provide confidence in critical security applications.
• Flexible integrations: supports up to 160VDC and 0.40A (10W) and can be ordered with E.O.L. resistors/diodes or private labeling for system customization.