Description:
Keyless lock (electronic keypad lock), install it yourself! don't worry about losing, forgetting, or making extra keys time and time again! install this keyless door lock yourself -- with nothing more than a screwdriver. Fits in standard door knob installation hole -- adjustable latch backset 2 3/8" to 2 3/4". you're free to add, change, or delete user codes -- and come and go as you please. 
Please note: batteries not included.

Features:
1.waterproof seals protecting electronic components
2.backlit keypad for use in low light
3.up to 10 changeable codes including passage ,user and master levels
4.deadlatch assembly with adjustable backset
5.DIY installation(instructions included)
6.LED indicators for code entry
7.anti spy code encryption
8.low battery warning with emergency power jump override

Specifications:
1. Material: Zinc Alloy
2. Color: Silver
3. Adjustable Latch Backset: 2 3/8" to 2 3/4" (60mm ~ 70mm)
4. Weight: 2.30bs

Package:
1 x Door Lock
8 x fixing screws
1 x jamb box
1 x strike plate
1 x emergency power
1 x User Manual