SDC MC-4 Recessed Magnetic Switch, White

Keep doors monitored and secure with the Security Door Controls SDC MC-4 recessed magnetic switch, engineered for professional security and access control installations. This recessed magnetic contact delivers reliable door status monitoring with an SPDT contact that integrates seamlessly into alarm panels, access control systems, and building management platforms. The compact 0.8" diameter and 1" depth recess into hollow metal or aluminum doors and frames for a discreet, tamper-resistant installation that maintains aesthetics—available in a clean white finish to match most frames.

With a standard activation gap of 0.5 in and low-power requirements (30V DC, 50mA), the MC-4 minimizes power draw while providing consistent surveillance and monitoring performance across multiple doors. Its easy-to-install design reduces labor time on site and simplifies retrofit projects. Backed by a 5-year limited warranty, the MC-4 is a dependable choice for commercial, institutional, and multi-site security deployments. Add the SDC MC-4 to your next access control or security project to improve door monitoring and system reliability.

• Reliable door status monitoring for access control and alarm systems
• Recessed, low-profile design conceals easily in hollow metal and aluminum frames
• SPDT contact and 0.5 in standard gap for flexible wiring and system integration
• Low-power operation (30V DC, 50mA) reduces load on controllers and alarm panels
• Durable white finish with a 5-year limited warranty for long-term security deployments