GRI 185-12-B 3/4" Steel Door Recessed Switch Set, Standard Gap, 5W, 175VDC, 0.25 Amp, Open Loop, N/C, B, Brown

Protect critical entry points with a compact, industry-proven recessed door contact engineered for commercial security. The George Risk Industries GRI 185-12-B magnetic contact delivers reliable, tamper-resistant monitoring for steel doors and frames, ideal for access control, alarm systems and surveillance integration. Built with a steel housing and self-lock mounting, the 185-12-B installs flush for a clean, low-profile appearance and reduced vandal exposure. It features a 0.5" standard gap, 12" leads for easy wiring, and is rated for 175 VDC with a 5W power profile to support a wide range of control panels. Configured normally closed (Form B) and supplied as an open loop set, this contact includes an end-of-line resistor option and is UL/ULC listed for commercial installations. George Risk’s lifetime warranty and proven durability make the 185-12-B an efficient choice for contractors specifying dependable door contacts for monitoring and alarm applications. Specify the GRI 185-12-B for your next access control or alarm monitoring project to ensure secure, long-lasting performance.

• Low-profile recessed design for discreet, tamper-resistant monitoring of steel doors and frames
• Fast, cost-effective installation with 12" leads and self-lock mounting to reduce labor time
• Reliable normally-closed contact (Form B) with a 0.5" standard gap for consistent alarm and access control performance
• UL/ULC listed construction and lifetime warranty for long-term system reliability and code compliance
• Steel housing and EOL resistor support durable, commercial-grade security and surveillance installations