nomenclature von duprin exit devices

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Answer
No, Von Duprin exit alarm ALK and electric latch retraction QEL or EL are installed in the same location and can't be ordered together with the same device.
To order Von Duprin exit device reference the "Additional information/How to order" section in the Von Duprin catalogs. All Von Duprin device series Catalogs are available on website.
The AE option is now called RX (Request to Exit) to match other Allegion exit brands nomenclature. The feature of getting a signal from the pushing of the device's pushpad is the same.
The Chexit device has a different base plate and center case than the ALK.  The Chexit device would need to be replaced with an ALK device.