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

Protect perimeter openings with a rugged, tamper‑resistant magnetic contact engineered for commercial and industrial security. The George Risk Industries GRI 400 industrial surface-mount magnetic contact gives integrators dependable door and window monitoring with a standard 1.5-inch gap to accommodate common steel frames. Concealed screw terminals minimize the risk of unauthorized access to wiring while the closed-loop, normally-open design integrates smoothly with alarm panels, access control and surveillance systems. Rated to 10W and 160VDC, the GRI 400 supports heavy-duty applications where reliability matters. Built from durable steel with an UL 10C fire rating and backed by a lifetime warranty, this unit reduces false alarms and lowers lifecycle maintenance costs. Ideal for loading docks, commercial storefronts, service entrances and industrial access points. Add the GRI 400 to your next security or monitoring specification to simplify installation and improve perimeter protection—contact sales or order now to secure your project.

• Tamper‑resistant concealed screw terminals protect wiring and reduce tampering for dependable, low-maintenance security installations.
• Surface-mount design with included spacers and hardware enables fast installation on commercial doors, frames and gates.
• Reliable closed-loop, normally-open magnetic contact for continuous monitoring and alarm integration with a 1.5-inch standard gap.
• Industrial-grade steel construction, UL 10C fire rating and a lifetime warranty deliver long service life in demanding environments.
• Compatible with access control, alarm panels and surveillance systems; rated to 10W and 160VDC for industrial applications.