Door Hardware & Locks Smart Door Lock Digital Lock Keyless Door Lock Entry by Code and Emergency Key (Left-Hand)

Design :this smart lock is designed to replace the cylinder ball door without a new hole .
Details :This keyless entry lock can set up 10 groups of codes ,fits doors 35~45mm thickness (1 3/8"-1 3/4"). Powered by 4 x AA batteries, with low battery alarm and emergency power supply .
Unlocking : Unlock with code ＆ emergency keys, there is no battery and keys ,emergency power supply is available
LATCH : Standard Latch(backset 2 3/8" and 2 3/4" both available in package).,Very easy installation, no extra hole required ,very easy to programming.Any question please watch the video below.

Specifications:
Applicable door thickness : 35~45mm (1 3/8"-1 3/4")
Code capability : :10 codes ,3 keys
Password Length: 1-13 digits
Powered by 4 x AA batteries (not included)
Battery Life: Approx. 20000 times ,about 1 year
Alarm for Low Battery
Zink alloy material , Nickel Brushed Finish Color
Unlock ways :code and key
Latch : backset 2 3/8" and 2 3/4"

Dimension :
Diameter of plate: 2.55"(75mm)*7.87"(200mm)
Latches with backset of 2 3/8"(60mm) and 2 3/4"(70mm) both available in the package.
Handle length:4.53"(115mm)

Handle Direction:
The handle direction for this lock is not reversible, this one is left hand, please check your door direction before buy

Factory resetting:
The reset button is on the back of front panel, hidden under the small hole, press and hold it for 5 seconds ,it will back to factory setting ,factory setting code is 0123 .

User capability :
You can set up 10 groups of codes ,the code begins with 0 is master code ,and the code begins with 1-9 is user code

How to use the keys:
There is a magnetic in the screw package ,use it to remove the key cover on the handle ,insert the key with 90 degree and turn the handle

Battery Changing:
There is a screw in the package ,remove the middle screw on the back panel , use the screw driver to insert through the hole, it will hit the pin of battery case, drop it, replace batteries, then install it back.