Nascom N505AUTM/ST1K Flip Clear RX Lens, 2.25", 24-Pack

Keep commercial and industrial overhead doors monitored and alarm-ready with the Nascom N505AUTM/ST1K flip-track magnetic contact. Designed for security and surveillance applications, this 2.25" track-mount flip switch delivers consistent closed-loop detection and eliminates false alarms from door travel using Nascom’s No Dead Spot technology. The N505AUTM/ST1K combines an extra-wide gap N35 NdFeB rare-earth magnet with a 1K resistor option to meet alarm panel supervision needs and tolerate larger gaps common in heavy-duty doors. Installers benefit from a universal mount, flip-switch orientation that won't affect gap performance, and a fast, under-60-second quick-switch installation that reduces labor time on site. Built for real-world deployments, the clear anodized extruded aluminum housing, 24" stainless steel armored cable lead protection and 36" 22 AWG wire leads provide rugged durability and clean wiring for monitoring, access control, and physical security systems. UL634 listing helps ensure compliance in commercial projects. Ideal for alarm contractors, integrators and facilities teams—order the Nascom N505AUTM/ST1K 24-pack to streamline installations and strengthen door monitoring across your sites.

• Prevents false alarms on overhead doors with No Dead Spot closed-loop design, ensuring reliable security monitoring
• Saves installation time with universal flip track mount and under-60-second quick switch setup
• Extra-wide gap performance from N35 NdFeB rare-earth magnet for dependable detection even on heavy or misaligned doors
• Durable, corrosion-resistant extruded anodized aluminum housing and 24" stainless steel armored cable for long-lasting, low-maintenance operation
• 1K resistor model with 36" 22 AWG wire leads and UL634 listing for code-compliant commercial installations
• Flip-switch can be mounted with cable in either direction, maintaining gap performance and simplifying field wiring