ZK Smartkey is the door lock management software for mobile devices Visitor mode Sharing temperary passcode from anywhere anytime User Registration Register your fingerprint,card, pin code through your mobile phone Records Check Keep track of Who&When has come Time Zone Grant limited access to your baby-sitter or house keeper Volume Setting Include three mode,hign volume, low volume and mute mode Initialization Reset the lock via app Normal open Support normal open by app Navigation(lock&app, unlcok through app Battery status Show the battery status of the lock