In addition to the alarm sound of all operating sounds, the user can set the volume level according to their preferences
Methods/Steps
1
Open the battery box cover of the rear cover panel, press the "Password" key, release the key. At this time, the key of the front cover panel will light up, and press any number key 0-3 on the key to confirm. The volume of the door lock is successfully set
2
Press 0 to disable all normal operation tones but not abnormal operation tones
3
From the 1-3 keys, all sounds gradually increase in volume as the number keys increase
4
No matter how many levels the volume is set, the maximum volume is automatically turned on when an alarm tone appears