Detex EAX-500 Grey Surface Mounted Exit Alarm - Reliable 100 dB Alert

In this review of the Detex EAX-500 grey surface mounted exit alarm, the bottom line is simple: it is a straightforward, battery powered surface mount that delivers a loud, reliable alert for exit doors. Installers and facilities managers will appreciate the compact footprint and the fact that it runs on a single 9V battery, making it useful where wiring is not practical. The unit is intended as a stand alone exit alarm to notify staff or security when a door is opened, and its 100 decibel piezo horn is the single biggest reason to consider it.

Key Features

• Stand Alone Surface Mount: Designed for surface mounting on a door or wall, it avoids the need for in-wall wiring and simplifies installation in retrofit jobs.
• Exit Alarm Function: The exit alarm mode sounds a loud audible alert when the door is opened, helping deter unauthorized exits and notify personnel quickly.
• 100 Decibel Alarm: The piezo horn produces a high-volume alert that is easy to hear across a hallway or in noisy industrial settings.
• 9V Battery Powered: Runs on a common 9V battery so the unit remains operational during power outages and is easy to service in the field.
• Includes Cover CAM Lock: Ships with a keyed #11 cam lock for the cover to protect the battery and prevent tampering.
• Durable Finish and Size: The grey finish and compact dimensions keep the unit unobtrusive while fitting standard door and wall mounting locations.

Who It's For

The Detex EAX-500 is aimed at facilities managers, small business owners, and safety officers who need a simple, effective exit alarm without running new electrical wiring. It is particularly suitable for retrofit applications on interior and exterior doors where audible notification is required and a surface mount solution is preferred.

It is not a replacement for monitored fire egress hardware or integrated access control systems; buyers needing networked alerts, remote monitoring, or hardwired power should look for a different model that supports those features.

Pros & Cons

Pros

• Easy to install as a surface mount device, reducing labor and disruption.
• Produces a clear, loud 100 dB alert that is effective in busy environments.
• Battery operation with a common 9V cell ensures operation during power loss.
• Includes a keyed cover cam lock for basic tamper protection and security.

Cons

• Does not include separate cylinders for keys in some reports, so check key/cylinder needs for prepared sites.
• Limited to stand alone alarm function and not suitable where integrated monitoring or hardwired power is required.

Specifications

Model	Detex EAX-500
Function	Stand Alone Surface Mount Exit Alarm
Alarm Output	100 decibel piezo horn
Power Source	9V battery
Dimensions	2.10 in W x 2.375 in D x 7.70 in L
Finish	Grey
Security	Includes cover cam lock, keyed #11

Our Verdict

The Detex EAX-500 is a pragmatic choice for anyone who needs a loud, battery operated exit alarm that is quick to install and simple to maintain. It offers good value for retrofit and standalone applications where a high-decibel alert and tamper-resistant cover are primary requirements, but it is not intended for sites that require integrated monitoring or hardwired power.

Frequently Asked Questions

Does the unit require wiring?
The EAX-500 is battery powered and designed as a stand alone surface mount unit, so no wiring is required for basic operation.

What power source does it use?
The alarm runs on a single 9V battery, making replacements simple and allowing operation during power outages.

Is a keyed lock included?
The product ships with a cover cam lock and keyed #11; some customers note cylinder availability separately depending on site needs.