alk auto reset

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AR1 is Auto-Reset 1.5 minute, AR3 is 3 minute, or AR6 is 6 minute option processed through engineering specials on a Von Duprin exit alarm ALK.
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.
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.
Yes.  The exit alarm ALK is shipped standard with a RX, request to exit switch, but can work with the optional LX, latch bolt monitor switch.  If there is no switch in the device it will never alarm.
The ALK exit alarm will sound when the exterior trim is used to enter from pull side without using access control when an LX latch bolt monitor switch is used instead of RX push bar monitor switch.
You should use the LX switch with the Von Duprin surface vertical rod exit device because the rods are exposed and are vulnerable to attack. IE, the top rod can be grasped and forced down to retrac...
All new 22, 33/35A and 98/99 series exit devices with exit alarm ALK option can be hard wired to the PS902 power supply as a standard  feature.
Standard Doors: standard inverted bottom channels will accept the following manufactures automatic door bottoms: National Guard (320) Pemko (420) Zero International (355/354)
Special (custom) option: a special/optional end channel that will support the following manufactures: National Guard (422/423/522) Pemko (443) Zero International (360/364).
The PS9 power supply was discontinued.  The new exit alarm ALK can either use a 9VDC battery or 24VDC regulated power supply. There is no direct replacement for Von Duprin PS9 power supply. Cur...