STI 6402 Exit Stopper Multifunction Door Alarm for Double Door, 95 or 105 dB Alarm when Activated, not for outdoor use

Prevent unauthorized use of emergency and exit doors with the STI 6402 Exit Stopper door alarm from Safety Technology International. Designed for double doors, this multifunction door alarm delivers an immediate deterrent and clear notification with selectable 95 or 105 dB audible alerts. Facility managers can choose alarm duration—30 seconds, 3 minutes, or continuous—or use annunciator mode that beeps and resets when the door closes, giving versatile options for security and monitoring.

Battery-powered with a low-battery warning and a keyed override for authorized exits, the STI 6402 installs quickly on top, left, right or beside most doors for minimal downtime. The stop-sign housing, 21 multilingual labels, and indoor-rated construction help enforce policy and improve occupant safety in schools, hospitals, retail, and commercial properties. For integration with existing access control or alarm panels, an optional Form C dry contact relay is available.

Ideal for security, surveillance, and access-control applications, the STI 6402 provides straightforward, dependable exit monitoring. Strengthen your facility’s emergency exit protection—add the STI 6402 to your security plan today.

• Deters unauthorized exits and entries by triggering a loud 95/105 dB alarm that draws immediate attention
• Customizable response: selectable alarm length (30 sec, 3 min, or continuous) and user-operated key override for authorized egress
• Easy integration and installation: mounts to top/side of double doors, battery-powered with low-battery warning and optional Form C dry contact for access control systems
• Bilingual warnings with 21 provided labels and stop-sign design improve compliance and reduce misuse of emergency exits
• Indoor-rated, CE-approved design with 3-year limited warranty for reliable facility security and emergency exit monitoring