The Von Duprin 99ALK3FTSP28 Exit Device is a Grade 1 Alarm Kit for 3 Ft. Applications on Von Duprin 99 Series Exit Devices, has a 24VDC input and comes in US28 Painted Aluminum Finish. The Von Durpin 99ALK3FTSP28 automatically re-arms with 1-1/2, 3 or 4-1/2 minute time delay upon request.
