This instrument is useful to any person interested in establishing the gold content of any jewelry The Golden Touch Electronic Gold Tester is very simple to operate. Using advanced electronics and a special test strip. The test mode will confirm if the jewelry in question contains gold (between 6 and 24 Karat). At the same time the tester will give you a clear indication if the tested jewelry is of solid gold or made of base metal and is only plated with a thin layer of gold.