Content in Metal Detector kit ( Pulse Induction PI detection method )

What is the maximum detecting range of Metal Detector kit?
It may be vary depending on the size of the materials/metal/aluminum.
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What is the Operating voltage of Metal Detector kit?
Its 8 ~ 12VDC, use external power supply (adaptor) connect it to DC jack of Arduino/gizDuino then in power
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Metal Detector kit ( Pulse Induction PI detection method )

Our new e-Gizmo Metal Detector kit can detect metallic object as small as 2x2mm (tested object - screw) located about 2 cm above the plane and center of the sensing coil. Larger objects can be sensed at a longer distance.