Product Overviews: This is a portable hand held metal detector,with large detecting probe area, fast detecting speed and high sensitivity,perfect for safety check and the detection of prohibited goods, electronic products, metal etc in station, frontier defense, school, court, venue, factory and so on. Product Specification: 1.Detecting temperature range: -15 ~ 45℃ 2.Frequency: 25K 3.Power source: 9V battery(included) …