GRI N20RS-T-G Contact Mini 3/8" with Rare Earth Magnet, Gray

Protect thin vinyl windows without drilling using the George Risk Industries GRI N20RS-T-G Mighty Mag contact magnet. Designed for installers and security professionals, this low-profile magnetic contact magnet provides reliable window and door monitoring while minimizing installation time and risk of damage. The rare-earth alloy yields a powerful magnetic field in a compact package—under 1/8" high—delivering a standard detection gap of 3/4"+ (and up to 1"+ on wider gaps) when paired with GRI 3/8" press-to-fit contacts. Nickel-plated construction resists chipping and corrosion, ensuring consistent performance in residential and light commercial security and surveillance systems. Compatible with common low-voltage DC alarm loops and available in multiple switch options (Closed Loop, Open Loop, SPDT, DPDT), the N20RS-T-G adapts to a variety of monitoring and access control applications. Installers can mount with included screws, double-stick tape, or adhesive for flexible mounting on modern windows. Backed by George Risk Industries' lifetime warranty, this Mighty Mag simplifies retrofits and new installs alike. Add the N20RS-T-G to your next security project for faster, less invasive window monitoring.

• Install on thin vinyl windows without drilling—protects glass and frames while saving time on-site
• Rare-earth magnet delivers a wide detection gap (standard 3/4"+; 1"+ on wide gaps) for reliable door/window monitoring
• Ultra low-profile magnet (under 1/8" height) reduces visibility and interference with window operation
• Nickel-plated finish resists chipping and corrosion for long-term performance in security environments
• Compatible with 3/8" press-to-fit contacts and available in multiple switch configurations (Closed/Open Loop, SPDT, DPDT)
• Backed by a lifetime warranty for dependable, low-voltage security installations