GRI 503-W Micro Surface Mount Switch Set, Open Loop, N/C, White

For installers specifying reliable, unobtrusive sensors, the George Risk Industries GRI 503-W Micro Surface Mount Switch Set delivers compact performance where aesthetics matter. This Micro surface-mount magnetic contact is ideal for security, surveillance and monitoring on residential and light-commercial doors and windows — including sliding tracks and crank-out windows — providing discreet intrusion detection without altering the look of the opening. The switch ships with 12" #26AWG side leads (longer leads or zip cord are available) and a standard operating gap up to 0.25" for consistent contact response. The open-loop, normally-closed (N/C) configuration integrates easily with access control panels and alarm monitoring systems. Installers save time with factory-attached 3M double-sided tape and multiple lead options, while plated contacts resist sticking or freezing to ensure reliable performance in varied conditions. Backed by George Risk Industries' lifetime warranty, the 503-W reduces service visits and total cost of ownership. Specify the GRI 503-W for discreet, dependable magnetic contact sensing — add it to your next intrusion detection or access control project today.

• Discreet, low-profile design that blends into doors, windows and frames for professional-looking security installations
• Quick installation with 3M double-sided tape and side leads, reducing labor time on retrofit and new-build projects
• Reliable plated contacts and lifetime warranty reduce false alarms and long-term maintenance costs
• Flexible wiring: standard 12" #26AWG leads with longer lead or zip cord options available to fit any layout
• Designed for intrusion monitoring and access control systems as an open-loop, normally-closed (N/C) magnetic contact