Handheld metal detectorThe handheld metal detector is a kind of metal detector, which is named because of the way it is used. The following is a detailed introduction to the handheld metal detector: 一、Working principleThe hand metal detector works on the principle of electromagnetic induction. When

Metal detectors are real in our daily life. They are usually used for people screening, from leisure and entertainment to work to safety, and they are widely used. Now it is widely used in airports, office buildings, schools, government agencies, prisons and other places. Metal detectors can help im