Walk through metal detector is use for scanning metal materials carry by human beings.
Before go through the metal detector gate, people need take off the belts, swatch, and all metal materials.
If the detector scan metals, it will alarm, and people need double check for safty.
Walk through metal detector gate is different for detecting zones, more zones more sensitive.
Walk through metal detector gate is widely use in railway station, airport, exhibition, government department, and other public sites.