Easy Scan technology has been applied to Conveniently read a fingerprint in one touch to enter conveniently.

With YDM 4115, you do not have to worry about carrying anything with you. Even if you have forgotten everything, just type your PIN codes into the keypad and the door is unlocked.

For emergency, it can also be unlocked with a mechanical key.

Keypad Displays functional operation with various patterns of light.

For multi-user environment, it can operate on Security (Master) mode where the master user can register and delete individual user while Normal mode controls all the users at one time.

Strong Lock body with hardened SS 304 bolts

If you are sometimes forgetful, you can set your digital lock to automatically activate 5 seconds after you close the door - so you never have to worry whether you remembered to lock it again. ( Manual operation is also available)

Issue single-use temporary passwords for convenient visitor access.

If when you come to use your PIN code you are concerned someone is watching the numbers you type, you can scramble your code to make it much harder to follow. Just type in some random numbers before or after your code and the lock will still operate - but the number will be much harder to remember!

YDM 4115 comes with strong Alkaline AA batteries, which have been tested to run on an average of 3500 open & close operations.

Even if your lock loses all its power, you can just attach a standard 9V battery that will bring back all the usual features of your lock, and giving you access to your home.

3 Minute Lock Out

Low battery alert gives you a simple audible and visual alert to let you know when the batteries are getting low - giving you plenty of time to change the batteries.

It can upgrade your existing door lock and supports door thickness from 38 mm to 80 mm.

If you have a little child or often enter/exit your home late at night, you can adjust the volume or mute the key tone of the door opening melody for your family or neighborhood.