Yes, the security door can detect the following things: electronics (such as: chip, memory, circuit board, hard disk, mobile phone, MP3, translator, recorder, electronic devices, etc.), wire and cable, electrical appliances, gold and silver jewelry, cigarettes, drugs, ink cartridges, industrial and mining, hardware products, electroplating, pressure casting, plumbing equipment, precious metals (copper, aluminum, etc.)
Agreed. Generally speaking, it can be detected, most of the metal detectors are now used, which belong to a metal class can be detected, and the chip on the mobile phone card can of course be detected. Electric treasure inside metal also detected, I hope my answer can help you