See More: http://goo.gl/r0Oz6t <br /><br />Master security : http://howsecurity.com <br /><br /> Keyless entry provides enhanced security <br /> Easy one tool installation <br /> Compatible with 1-3/8-to-1-3/4-inch thick doors <br /> Codes are easily added or deleted right at the keypad using the lock's unique 6 digit programming code <br /> Includes 9-volt battery, 6 digit programming code, and two 4 digit user codes pre-set at the factory
