Magnasphere MSS-303C-BLACK 1" Recessed / Concealed Contact with 3 Switches, 3 Closed Loop

For installers and integrators who need secure, low-visibility door and window protection, the Magnasphere MSS-303C-BLACK recessed magnetic contact delivers a discreet, professional solution. This concealed contact mounts flush inside a 1-inch frame or jamb, minimizing visible hardware while providing tamper-resistant monitoring for security and surveillance applications. The MSS-303C features three independent switches with 3 closed-loop circuits, allowing a single device to supervise multiple alarm inputs or zones and reduce wiring complexity in access control and alarm systems. Finished in matte black and built in the US, it’s engineered for long-term reliability and a low profile that complements commercial and residential installations. Compatible with standard alarm panels and monitoring systems, the Magnasphere magnetic contact is a practical choice for facilities requiring covert intrusion detection or multi-circuit supervision. Specify the MSS-303C-BLACK for projects that demand dependable, unobtrusive security components—order now or contact our sales team for bulk pricing and technical support.

• Low-profile 1-inch recessed design keeps sensors hidden for a clean, professional finish and reduces tamper risk
• Three independent switches with 3 closed-loop circuits let you monitor multiple zones or supervise circuits from a single contact
• Discreet black finish blends into dark frames and trim to support covert surveillance and aesthetic installations
• Robust US-made construction ensures consistent performance in access control, alarm, and monitoring systems
• Ideal for retrofit and new-build projects where minimal visible hardware and reliable supervision are required