 | One touch mute function |
 |
Master seccret code function |
 |
Battery replacement warning function |
 |
Notice operation state with beep sound |
 |
Backlight function |
 |
Easy and hgh mobility installation system |
 |
Automatic locking function |
 |
Secret code memory function(back up function) |
 |
Automatic relockingg function |
 |
Emergency external power supply system |
 |
Double locking function |
