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“ Alarm not working on unit. ”

Resolution: On the Benchmark, if there is line noise from a strike then the unit will lose it's hold open time. Adding the ES Filter, which is a diode, will resolve this issue and the unit will hold it's...:

Is a switch required to operate the Von Duprin ALK unit?

Resolution: 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.:

Does the 900-BBK option for the PS900 series recharge the batteries?

Resolution: Yes, the 900-BBK is a kit that contains the battery backup circuit board and (2) 12V 7 amp/hour batteries which will provide battery back up to the unit when AC fails and will also charge the batte...:

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“ Alarm not working on unit. ”

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