| Six mutual over-lapping detecting zones, | 
|  | Simultaneous alarm from multi-zones | 
|  | Sensitivity adjustable: Each zone has 100 sensitivity level | 
|  | Sound & LED alarm: Both Side LED indicator, easily | 
|  | show where the metal is | 
|  | Automatically count passengers and alarm times | 
|  | Alarm strength indicator on control panel | 
|  | Password protection, only the authorized person can operate | 
|  | Easy assembly : designed with only 2 pieces cables and 8 screws, simply-to-follow instruction | 
|  | Harmless to human body : is harmless with heart pacemaker, pregnant    women, magnetic | 
|  | floppy, recording tapes, etc | 
|  | Using high density fireproof material | 
|  | Program Self-diagnostic when power on, no need | 
|  | initial or periodic calibration | 
|  | Modularization design, easy for maintenance and replacement |