About this item 【100 Codes & 3 Keys 】: Probrico electronic digital deadbolts feature traditional key access as well as the ability to unlock with a Programmable 6 to 12 digit user code. The owner has up to 100 different user codes and can delete them as desired. 【 Auto-Lock Function】: This keyless deadbolt lock automatically locks the door after a set time (5-900s) for peace of mind just in case you forget. No more wondering if remembered to lock the doors at night or when you leave. 【Easy to Install】: The keyless entry door lock deadbolt is simple to install and can replace your existing deadbolt, a screwdriver is all that is required. The deadbolt fits for both left handed and right handed doors. Fits door thickness of 1 to 3/8 inches to 1 to 3/4 inches. 【Easy to Operate】: This keyless deadbolt lock has a back-lit keypad, that provides you with easy keyless entry even in the dark. This keypad deadbolt lock allows you to quickly and securely lock your home by one-touch lock button. 【Superior Security & Great Convenience】: ANSI/BHMA Grade 3, one-touch lock, auto-lock, back-lit keypad, all are for your security and convenience.This electronic lock is also equipped with a low-battery alert and a USB socket at the bottom for emergency charging › See more product details