GRI MC-25 Channel Magnet, 1/2" Gap, for Aluminum Windows and Sliders

Protect aluminum windows and sliding doors with a low-profile channel magnet engineered for practical, professional security applications. The George Risk Industries MC-25 magnetic contact magnet installs discreetly inside aluminum window and slider tracks to provide reliable intrusion detection for commercial and multi-family properties. Equipped with a rare-earth magnet, the MC-25 delivers strong, consistent operation and supports a 1/2" activation gap when paired with compatible 3/8" press-to-fit contacts—ideal for sensor arrays used in security, surveillance, and monitoring systems.

Designed for installers, the MC-25 fits most standard aluminum tracks and uses molded grippers for a tool-free, no-drill press installation that speeds deployment and reduces onsite labor. The white, low-profile housing blends with frames to maintain aesthetics while providing robust performance. Backed by US manufacturing and a 1-year limited warranty, the MC-25 is a cost-effective choice for retrofits and new builds that require dependable window and slider contact sensors.

Specify the George Risk Industries MC-25 for streamlined installations in access control and alarm systems—order now to enhance your window and slider security setup.

• Discreet channel mounting secures aluminum windows and sliders without altering frame appearance
• Rare-earth magnet delivers reliable contact activation with a 1/2" gap for consistent security monitoring
• Tool-free, press-in installation with grippers holds the magnet in place—no drilling required to save labor time
• Fits most standard aluminum tracks for fast retrofits and reduced customization on installations
• Durable aluminum housing and US-made quality with a 1-year limited warranty for dependable on-site performance