can you use an alarm kit with an el device

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Exit alarm ALK operates with 9VDC battery and doesn't required a power supply.If you choose to hard wire the exit alarm ALK use the PS902 power supply.Exit alarm ALK requires 24VDC regulated power ...
Yes, the current conversion kits will fit the old style/obsoleted 35 or 35 series vertical rod exit devices. 
The conversion kit does not contain a new mechanism case cover plate.  If a cover plate is desired you would need the Fire or Less Dogging Cover Plate for EL conversion kit and panic cover plate fo...
Use a normally closed fire alarm as the input to the power supply option board (PS873-2 or PS914-2RS), this will hold the latch retracted.  During a fire alarm, the contact will open, dropping...
You cannot convert the old Von Duprin 33/35 rim exit device to EL electric latch retraction as the device center case was different than EL33/35 rim center case assembly.
The Von Duprin EL option can be added to any existing 33A/35A, 98/99 series exit devices. 
PCB only for the Alarm Kits prior to June 11th, 2012 is part #650335 and was used in the older 17 & 18 devices, 19, & pre June 2012 24/25's.
This circuit board will NOT work on the updated 24/25 Alarm Kits that released June 11th, 2012.
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.