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The DETEX EAX-300 GRAY MC65 is a surface-mount door prop alarm designed to alert building occupants and security personnel when a door is held open beyond an acceptable dwell time. The unit runs on battery power, eliminating the need for hardwired electrical connections and simplifying installation on existing doors. It incorporates a mortise cylinder lock for controlled access and key-based alarm silence. The gray finish provides a neutral appearance suitable for commercial and institutional door frames. This type of device is typically installed by licensed locksmiths, security contractors, or door hardware specialists.
The EAX-300 GRAY MC65 is suited for commercial and institutional applications where door prop monitoring is required, such as stairwell doors, emergency egress exits, and utility access doors. The surface-mount design allows installation on hollow metal doors and frames without the need for through-door wiring or major door modifications. The battery-powered configuration makes it practical for retrofit installations where conduit runs are not feasible.
Designed as an OEM-style surface-mount door prop alarm for commercial hollow metal doors and frames requiring battery-powered, mortise-cylinder-equipped prop alarm protection.
Installation is typically performed by a licensed locksmith or qualified door hardware technician. Before installing, confirm the door and frame can accept the surface-mount footprint and that the mortise cylinder bore is correctly positioned. No hardwired power connection is required, but battery installation should be completed and tested before the door is returned to service. Verify local life-safety and fire code requirements, including NFPA 101 and local AHJ guidelines, before mounting on fire-rated or emergency egress doors.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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