... ,copper,zinc,alloy etc.9,Indication of alarming zones on two sides of metal detecting door.10, ... count alarm times and people numbers of passing through on digital panel.11,Password protection function to ... supply: 220V AC, 50/60Hz2,Power: < 35 W3,Through rate: more than 60 persons / per minute4,Signal Frequency ... 1,EMC,ECCE Certificate;National standard GB15210-2003 Walk-through Anti-theft Detector