EAX-2500SK1 - Surface Mount Hardwired AC/DC Exit Alarm Complete Kit - GrayDetex EAX 2500S Surface Mount Hardwired AC DC Exit Alarm Gray The EAX 2500 is designed for applications requiring a hardwired AC DC alarm on secure doors. The alarm, with approximately 100dB, will sound when someone attempts an unauthorized exit. The EAX 2500, with its smaller size and designed to fit in a standard 4" x 4" outlet box makes it the choice for quick and easy installations on emergency exit and restricted doors. Features Complete kit