Operating a metal detector is simple. Once you turn the unit on, you move slowly over the area you wish to search. In most cases, you sweep the coil (search head) back and forth over the ground in front of you. When you pass it over a target object, an audible signal occurs. More advanced metal detectors provide displays that pinpoint the type of metal it has detected and how deep in the ground the target object is located.
SECURITY FAQS is a Social Initiative by Digitals India Security Products Pvt Ltd. It answers all your queries regarding CCTV systems, Audio Video door entry systems, Security alarm system, Integrated Alarm systems, Metal Detectors and related accessories.
HHMD is used mostly for detecting metal in human body.
ReplyDeleteTo search underground metal deep search metal detectors are used and it's construction and operating principle is totally different from hhmd.