GUARD-X provides secure, alarmed code-compliant protection for secondary exits. GUARD-X exit alarm lock readily identifies the door on which it is mounted as an emergency exit and secures the opening against unauthorized use. It is ideal for deterring theft in restaurants and retail establishment such as: discount stores, grocery stores, drug stores, clothing stores and sporting goods stores. Quick installation with an easy-to-use adhesive back template, Non-handed design allows installer to mount for either hand by just removing and reversing the "emergency exit - alarm will sound" sign built into the device. Heavy duty construction with stainless steel deadbolt with cast aluminum latch case. Only authorized person with a key can re-latch or reset the alarm after unauthorized exit. 100 decibel Alarm. Armed and disarmed by key. Alarm is powered by standard 9 V battery.