The first metal detector was likely the simple electric conduction metal detector ca. 1830. [1] Electric conduction was also used to locate metal ore bodies by measuring the conductivity between metal rods driven into the ground. In 1841, Professor Heinrich Wilhelm Dove published an invention he called the "differential inductor". [2] It was a 4-coil induction balance, with 2 glass tubes each having 2 well-insulated copper wire solenoids wound around them. Charged Leyden jars (high-voltage ... Get contact details & address of companies manufacturing and supplying Metal Detector, LCD Metal Detector across India. 1 2 offers from ₹1,599.00 #6 Metal Detector Pinpointer, 360°Search Treasure Pinpointing Finder Probe with 9V Battery and LED, Waterproof Metal Detector for Treasure Hunting, Metal Detecting Accessories for Adults, Kids--Orange 4,548 3 offers from ₹2,991.00 #7 Online shopping for Metal Detectors from a great selection at Outdoor Living Store.
