Schlage FE595 CAM 619 GEO Camelot Keypad Entry with Flex-Lock and Georgian Style Knobs, Satin Nickel For back, side or garage entries - also ideal for offices, workout rooms, wine cellars or any room requiring access control Professional Grade security with the biggest adjustable bolt available for increased resistance to kick-ins.Door thickness range: 1-3/8 inch to 1-3/4 inch thick Pre-set, unique, six-digit programming code, two pre-set unique four-digit user codes (19 code capacity) Weather-resistant, silicon-coated keypad so numbers don't wear off;LED backlight Designed for standard door prep (fits existing pre-drilled holes) Keyless entry for enhanced security, no keys to lose or forget Flex-Lock feature allows you to switch between unlocked or automatic re-locking with the turn of a button Keypad illuminates so you can see it at night Codes easily added or deleted right at the keypad using the lock's unique 6 digit programming code Includes 9-volt battery, a 6 digit programming code, and two 4 digit user codes pre-set at the factory