What technology the Golden Touch Electronic Gold Tester use to determine gold content?
The Golden Touch Electronic Gold Tester uses a molecular process of electrical currents to determine if an item is solid gold or gold plated and also can tell the grade of the gold. The electrode is attached to the gold and when the gold piece with the electrode attached is drawn across the test strip, it will leave a thin line. No gel is needed, so the jewelry is not damaged in any way.