This lock comes with a deadbolt,you can press “#” for 2 seconds to lock the door when you are outside, or you can turn the knob to lock the door when you are inside. You can also set auto lock between 10-999 seconds, if it is set, the deadbolt will automatically locked after the time you set. And it will keep locked for about 30 seconds if you constantly put in the wrong code 3 times.
Room 510, Tower B, ZhengZhong Time Sqaure, Long Cheng Road, Long Guang District, Shenzhen City, Guang Dong Province, P.R.C