Commercial Door Push Bar Panic Exit Device With Alarm Sprayed Aluminum 9 Volt Battery Included Cylinder & Key To Set Alarm Included Alarmed Panic Device - Alarm Sounds If Push Bar Is Depressed Includes Adjustable Roller Strike Fasteners For Wood Or Metal Doors - Fits Either Right Or Left Hand Doors Interior push pad for wood or metal doors. Fits doors between 30 and 36 inches in width. Overall length of device is 31 inches Alarm That Sounds When Push Bar Is Depressed. Alarm Uses Standard 9 Volt Battery Sticker That Says - Emergency Exit Push To Open - Alarm Will Sound Adjustable roller latch - Mounts on door frame stop. ANSI Grade 1 approved, exceeds 500,000 cycles Complies with ANSI 117.1 for accessible and usable Buildings and Facilities Standards ADA Compliant Fits doors that are between 30 and 36 inches in width For use on either wood or metal doors Overall exit device length is 31 inches Includes all mounting hardware