Napco PG21MS XIT Single Door Exit Alarm, 9V, Metallic Silver

Ensure secure, code-compliant exits and prevent unauthorized door use with the Napco Security Technologies PG21MS Single Door Exit Alarm. Designed as a surface-mount door alarm, the PG21MS continuously monitors door status and delivers a powerful 100 dB audible alert when the protected door opens, making it ideal for emergency exits, stairwells, restaurants and healthcare facilities. The unit supports battery operation or 9–12V DC input for uninterrupted security monitoring even during power loss, and its tamper-resistant keyed cover plus standard mortise cylinder acceptance reduce nuisance tampering while preserving authorized access. Integration is simple—use the built-in Form-C relay to tie the alarm into fire, burglary or access control panels, and add external reed switches to monitor multiple doors from one device. With selectable siren patterns and time-delay options, you can tailor responses to your facility’s procedures and surveillance workflows. For reliable, professional-grade door protection that complements your security and access control strategy, specify the Napco PG21MS for your next project or contact your distributor to order.

• Immediate, high-impact audible deterrent with 100 dB siren to stop unauthorized exit attempts and draw attention to security breaches
• Continuous door monitoring with magnetic contact and multiple external reed inputs for multi-door coverage and integration into existing surveillance routines
• Flexible power options (battery or 9–12V DC) for reliable operation during outages and simplified installation on surface-mount doors
• Tamper-resistant lock and standard mortise cylinder compatibility to prevent tampering while maintaining easy authorized access control
• Form-C relay output and selectable siren/time-delay modes for seamless integration with fire, burglary or access control systems
• Compact metallic silver housing blends with facility aesthetics while delivering durable, secure performance