Detex Newsletter
October is National Energy Management Month
Manage Your Energy with Detex's Door Prop Alarms


EAX smalles logo411 Series Door Prop Alarm
 Door Prop alarm

The EAX-411SK AC powered door prop alarm provides a unique solution to the common security challenge associated with doors that are propped open. Helping to enhance access control systems and provide additional perimeter security, the EAX-411SK provides a custom fit for each opening with its 0 to 60 second adjustable "door open" time. When a door is left open longer than the set time, the alarm will set. The EAX-411SK will automatically reset when the door is closed.



  • Alarm encourages users to keep door closed
  • Localized alarm notifies area personnel of security breach/door prop condition
  • Helps save on energy costs
  • Reduces false alarms



  • Stand alone device
  • Integrates into any access control system
  • 90dB alarm easily warns of door prop status
  • Adjustable alarm delay time from 0 to 60 seconds
  • Automatic alarm reset/rearm upon door closure


EAX-411 Catalog Page



EAX-411....................................$350 List Price

- Back Box

- Magnetic Switch Contacts

- 24VAC Transformer



EAX smalles logoEAX-300 Surface Mount Battery Powered Door Prop Alarm


EAX-300 Black and Gray

The Detex EAX-300 Series is designed for applications where doors may be used for egress or ingress, but may not be held or propped open. Door open times from 1 second to 4 minutes (15 second default) are field selectable. The smaller size makes installation quick and easy. The best thing about it is it's a low cost solution to propped open doors and helps keep energy costs down by ensuring doors are closed. The alarm silences when the door is closed - you don't have to wait for the key holder to arrive.



  • Low cost solution to propped doors
  • Keeps energy costs down
  • Quick and easy installation
  • Alarm silences when door is closed



  • Secure, tamper resistant housing
  • Intelligent circuit senses the external magnet location automatically and sets the correct door handing
  • 100 dB piezo alarm
  • 9VDC battery operated
  • Low battery alert
  • LED visual arming indicators
  • Adjustable alarm delay time 1 to 240 seconds


EAX-300 Catalog Page 


EAX-300 ...................................$272 List Price

- Internal Magnetic Door Contacts

- Back Box

- Gray or Black

- Weatherized Available ($378 List Price)



Cylinder Nut Socket now on sale 

Make installing Mortise cylinders on Detex Exit Alarms easier with the Cylinder Nut Socket. Screwing the Cylinder Nut on the back of the Mortise cylinder with a screwdriver alone can damage the switches and the other sensitive parts in your Exit Alarm, but when the Cylinder Nut Socket is used, it drastically reduces chances that the switches will be damaged, and will help ensure proper tightening of the Mortise Cylinder.

Cylinder Nut Socket........................$40 List Price



Tech Tip     


How to change the Door Prop Times

Note:  The device first needs to be handed  according to installation instruction, then proceed with the following steps. (EAX-300 shown)

Step 1: Remove battery.

Step 2: With both micro switches closed, reconnect the battery. The flashing of the LEDs will indicate the current selection of door prop time (see Table B).

Step 3: Release both switches. The switch on the left (OKC switch) changes the programming. Pushing this switch will change the setting incrementally according to Table B. Once the desired time is selected, wait 15 seconds for the unit to flash the selection three times. The timing has successfully been changed upon hearing the siren chip four times. The new timing is retained in memory even with battery removal.



For more application questions, call:

Detex technical support at 1-800-729-3839, ext. 2.


Contact Detex sales at 1-800-729-3839 or your local representative for more information. 

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Upcoming Trade Shows


 DHI - October 17-18
Las Vegas, Nevada
ISC-Solutions - Oct. 31-Nov. 1
New York, New York

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