The Detex EAX-2500C Gray is a compact flush-mount, AC/DC hardwired exit alarm with the EA-2500F retrofit conversion option for commercial and institutional doors. The linked SECLOCK configuration is identified as EAX-2500FC GRAY: F denotes Detex's flush-mount EAX-2500 alarm and C denotes the 102640 conversion kit used when replacing the older EA-2500F exit alarm. It provides an approximately 100 dB piezo audible alarm when a monitored door is opened without authorization, while allowing the door's existing mechanical egress hardware to function normally. The standard finish is gray.

Retrofit compatibility: The C conversion configuration addresses the transition from an EA-2500F to an EAX-2500F. The Detex 102640 retrofit hardware includes an 11-inch × 6-1/2-inch × 0.16-inch aluminum adapter plate with mounting anchors, screws and installation instructions. The conversion plate is an installation accessory used with the EAX-2500F flush-mount exit alarm; it is not a separate standalone electronic exit alarm. Confirm the precise factory package and existing EA-2500F cutout/wiring dimensions before a retrofit. This listing is based on the buyer-supplied EAX-2500C GRAY name and the supplier reference EAX-2500FC GRAY, which should be cross-checked on the purchase order.

Alarm and life-safety operation: The EAX-2500 uses an approximately 100 dB local piezo horn to warn personnel when a monitored door is opened while the alarm is armed. The system accepts a magnetic door contact to monitor opening/closing, can signal remote security systems via relay output, and supports remote bypass for approved authorized traffic. It is an exit alarm, not a door lock or delayed-egress release device. It neither holds a fire door open nor restricts emergency exit, and it must not be described as an adjustable 1-30-second fire-door prop alarm. Ensure that the existing exit hardware and fire-door latching comply with the door's requirements.

Power and mounting: This EAX-2500F/C installation uses hardwired AC/DC power, typically with a manufacturer-approved 12/24V AC/DC supply, and allows an optional 9VDC backup battery. The flush alarm is designed around a standard 4-inch × 4-inch double switch/outlet box; adapter-plate preparation depends on the older EA-2500F installation. The standard non-kit EAX-2500F/C does not include a transformer or magnetic door contact unless expressly supplied in a custom factory package. Those components are included in certain separate FK/FK1 complete kit versions, which are not the same part number. An optional 9V backup battery should not be assumed included.

Inside key control: The alarm is armed and disarmed from the interior using a compatible mortise cylinder with standard Yale cam. The mortise cylinder is sold separately unless factory-installed cylinder options such as MC65 or IC7 have been explicitly ordered. Detex's patented cam arrangement accommodates supported cylinder lengths without spacers, while a seven-pin cylinder may require an additional collar. A key is needed to silence/reset the alarm according to the selected programming. Pictures may show a cylinder for illustration even though no cylinder is included.

Key Features and Benefits

• Detex EAX-2500 Series: Compact, rugged, wall-mount exit alarm platform for unauthorized-egress monitoring on commercial and institutional doors.
• Flush-mount EAX-2500F configuration: Fits a standard 4 × 4-inch double-gang outlet box and provides a neat, low-profile alarm face.
• EA-2500F conversion option: The C suffix specifies the Detex 102640 retrofit adapter for updating an older flush-mount EA-2500F installation.
• Approx. 100 dB piezo alarm: Audible alert warns staff when a monitored door is opened without authorization.
• Field-selectable status indications: Program visual status indicators to suit facility needs and the desired armed/disarmed indication.
• Selectable audible or silent arming: Use the manufacturer's selectable operation settings for site-specific alarm policies.
• Remote alarm relay output: Connect to compatible central security, building monitoring or annunciation inputs as specified.
• Bypass input: An authorized external control can temporarily bypass local alarming when approved.
• Extended bypass function: Can keep the alarm bypassed while a door is open and then automatically rearm when that door closes if configured and wired correctly.
• Field-selectable automatic rearm: Includes a 2-minute auto-rearm option, with alternative longer factory/control settings where specified.
• Typical 15-second arming delay: Factory-standard alarm arming delay; this is not a delay to mechanical egress.
• Hardwired AC/DC design: Requires compatible field power and door monitoring; optional 9VDC standby battery support.
• Low-battery notification: Field-selectable alert when the backup battery is low, if installed.
• Mortise-cylinder key operation: Compatible standard-cam mortise cylinder used for key arming/disarming; cylinder purchased separately.
• Patented adjustable cylinder cam: Supports Detex-approved cylinder preparations without relying on multiple spacers.
• Tamper-resistant housing: Protective cover and construction suited to heavily used monitored exits.
• Gray architectural finish: Standard neutral gray body for commercial walls and frames.
• EA-561 alarm warning sign: Included in Detex's standard flush-mount alarm package; verify actual factory contents when ordering the conversion version.
• Retrofit adapter plate: Conversion plate roughly 11 × 6.5 inches allows the newer alarm to fit an existing EA-2500F installation.
• Standard 3-year manufacturer limited alarm warranty: Subject to the current manufacturer warranty and specific electronics terms.
• No powered latch or lock included: The alarm monitors a door; it does not itself release a maglock, retract a panic device, or provide a delayed-egress locking function.

Detailed Product Specifications

Where to Use This Alarm

• Existing EA-2500F replacements: Retrofit older flush-mounted Detex exit alarm locations without treating the adapter plate as a standalone alarm.
• Emergency exit doors: Provide local audible notification when a monitored door is opened without authorization.
• Schools, hospitals and public buildings: Notify nearby staff of exit attempts at restricted or monitored openings.
• Retail and warehouse security: Add audible loss-prevention monitoring at personnel exits.
• Government and institutional facilities: Coordinate alarm outputs and bypass functions with existing security systems.
• Commercial door frames and wall boxes: Mount to an appropriately powered 4 × 4-in box, with a separately specified door magnetic contact.

Included with the Specified Factory Configuration

One Detex EAX-2500F gray flush-mount AC/DC exit-alarm unit with the separately identified C retrofit-conversion option (Detex 102640 adapter plate and mounting hardware) intended for replacement of an older EA-2500F alarm. The standard Detex EAX-2500F package references an EA-561 warning sign and back box, although conversion installations may require a different backing arrangement. Confirm actual factory packing contents for EAX-2500FC GRAY / EAX-2500C GRAY before shipping.

Required Separately

Mortise control cylinder and keys, compatible magnetic door contact, suitable transformer / AC/DC supply and required wiring are normally sold separately on the F/C version. Also excluded unless specifically provided are a 9V backup battery, security monitoring panels, additional annunciators, new door hardware and professional installation. A complete FK / FK1 flush kit has different included contacts and power components; do not confuse the two packages.

Important Ordering Notes

Model-name verification: The buyer-provided name is EAX-2500C GRAY, while the referenced SECLOCK product link contains EAX-2500FC GRAY. Detex's factory ordering system describes F as flush mounting and C as the 102640 conversion for retrofit from EA-2500F, so this listing identifies the combined flush-mount alarm plus conversion option rather than a bare adapter kit or a generic door-prop alarm. Confirm the actual factory and SECLOCK order code before publishing or ordering, along with the existing alarm footprint, door contact and transformer, mortise cylinder length/cam, alarm sequence and applicable life-safety codes. The 5 lb shipping weight is estimated and should be replaced with the actual carton weight.