DSI ES300 Battery Operated Door Prop Alarm for Door Entry or Exit Applications

Stop unauthorized exits and improve door monitoring with the Designed Security, Inc ES300 Battery Operated Door Prop Alarm. Built for entry and exit applications, the ES300 combines a 100 dB audible alarm with visual LED indication to instantly alert staff and act as an effective deterrent against tailgating and propped doors. The battery-powered 9V design lets you install the exit door alarm quickly without wiring to building power, making it perfect for retrofit projects, storefronts, and temporary installations.

The ES300 is tamper-resistant, UL listed, and offers field-selectable timing plus an auto-silence feature that resets when the door is closed—reducing false alarms and lowering maintenance. A weatherized option (add “W”) extends durability for exterior doors. Whether you’re securing retail exits, warehouse doors, or controlled access points, this DSI exit door alarm integrates into your overall security and surveillance strategy, improving occupant safety and operational monitoring. Contact us to specify the ES300 for your next door security application or to request a quote.

• Prevents unauthorized entry/exit with a loud 100 dB audible and visual alarm for immediate deterrence
• Battery-operated 9V design for easy installation where power is limited, ideal for retrofit and temporary doors
• Auto-silence feature resets automatically when the door closes—no manual reset required, improving staff efficiency
• Tamper-resistant, weatherizable housing (optional “W”) protects equipment and ensures reliable monitoring in harsh environments
• UL listed and made in the U.S.A., providing dependable performance and code-compliant security for commercial sites