GRI M-401-B Magnet Only for 400, Brown

Restore dependable perimeter sensing quickly with the GRI M-401-B magnet-only replacement from George Risk Industries. Designed specifically for the 400 series contact line, this brown magnet (Manufacturer Part Number M-401-B) provides consistent activation for door and window monitoring in commercial and residential security systems. As a magnet-only component, it lets technicians perform fast, cost-effective field service without replacing the entire contact assembly—reducing labor and equipment expense. The discreet brown finish conceals installations on wood-veneer frames and brown hardware, improving aesthetics for hospitality, retail and office environments. Made in the U.S., the M-401-B delivers repeatable activation and compatibility with standard reed switches used in alarm, surveillance and remote monitoring setups. Keep your access points protected and alarms accurate by swapping in this reliable magnet when existing magnets wear, shift, or lose strength. For replacement parts that minimize downtime and maintain system integrity, choose the George Risk Industries M-401-B magnet—order now or contact your supplier to specify for your next service call.

• Direct replacement magnet for GRI 400 series to restore reliable door/window contact performance
• Brown finish blends discreetly with wood frames and brown surfaces for low-visibility installations
• Magnet-only part (M-401-B) simplifies service and reduces downtime by avoiding full assembly replacement
• US-made construction from George Risk Industries ensures consistent activation and long-term durability
• Ideal for security, surveillance and monitoring systems requiring tamper-resistant, dependable reed contact operation