DSI ES411-K1 Door Prop Alarm, Double Bit Key Switch, 4.60" x 4.60" x 1.49" D, Beige

Stop propped doors from becoming a security liability. The Designed Security, Inc ES411-K1 Door Prop Alarm is a compact, standalone door alarm engineered to notify staff and security teams when a door is held open beyond a preset interval. With a field-selectable delay of 0–60 seconds and an 80 dB audible alert, it enforces access control policies while reducing nuisance alarms from momentary holds. The ES411-K1 also includes an alarm-status relay for remote monitoring and integration into existing security and surveillance systems, making it a practical choice for facilities management and IT security teams. Sized at 4.60" x 4.60" x 1.49" and built with tamper-resistant construction, this wired unit accepts standard 24V DC power and fits neatly into corporate, healthcare, retail, and educational environments. Improve site monitoring, discourage propping behavior, and streamline incident response with minimal installation effort. Add the ES411-K1 to your security stack—order now or contact us for volume pricing and integration guidance.

• Prevents security breaches by alerting personnel when doors are propped open, reducing unauthorized entry and tailgating
• Local 80 dB audible alarm plus alarm-status relay enables on-site notification and remote monitoring integration with access control
• Field-selectable delay (0–60 seconds) minimizes false alarms from brief holds while enforcing door-closed policies
• Compact, tamper-resistant housing (4.60" x 4.60" x 1.49") in neutral beige for discreet, professional installation
• Works standalone or integrates with existing access control systems; compatible with 24V DC power for common security installations