AT-IIIA Walk-through Metal Detector is ideal for searching concealed weapons or preventing theft. Technical ... knife, gun, and copper, aluminums, zinc (more than 150g), ignoring metal in belt button, shoes.Shock proof to avoid false alarmSound ... EN50082-1 CE Certificate; ISO 9001:2000 Certificate National standardFunction: Walkthrough Metal Detector can easily detect weapons, such as knife and gun, and ...