Magnasphere HSS-L2D UL634 Level High Security Dual Alarm, Surface Mount Contact with Tamper Circuit, Closed Loop

Built to defend the most sensitive environments, the Magnasphere HSS-L2D dual-alarm magnetic contact delivers dependable, tamper-resistant protection for SCIFs, safes, vaults and other high-security applications. This surface-mount magnetic contact uses Magnasphere's non-reed switch technology to resist both internal and external magnetic defeat attempts, ensuring reliable closed-loop monitoring and fewer false alarms. UL 634 Level 2 certification and an industry-leading tamper circuit provide verified security performance, while optional embedded EOL resistors and armored cable options simplify integration into existing control panels and surveillance systems.

Engineered for commercial installation, the HSS-L2D operates on low-voltage DC and consumes minimal power (250 mW), with a standard 0.13" gap for tight fitting doors and frames. The robust aluminum housing and tamper sensor give security teams clear, actionable alarm signals for faster incident response. Ideal for enterprise security, government facilities and banking, this magnetic contact upgrades perimeter and access-point monitoring without complex adjustments. Contact our sales team to specify the HSS-L2D for your next high-security project or order now to strengthen your monitoring and surveillance systems.

• Designed to protect SCIFs, safes and vaults with UL 634 Level 2 tamper-resistant performance
• Dual-alarm, closed-loop design with industry-leading tamper circuit to reduce false alarms and covert defeat attempts
• Surface-mount, armored construction with optional embedded EOL resistor for straightforward integration into existing control panels
• No mechanical reed to fail—reliable Magnasphere switch technology minimizes maintenance and extends service life
• Compact footprint and 0.13" standard gap simplify installation in constrained commercial and government environments
• Compatible with monitoring and surveillance systems, providing clear signals for security operations and incident response