Similar to the Tri Electronics microprocessor gold testers in operation, these models give a numeric reading on their LCDs. The user then consults a chart to determine the karat. They test yellow, white, green, and red gold in a matter of seconds.
The GT3000
gold tester reads from 6 karat - 18 karat and is covered by a 1 year manufacturer's warranty.
Uses gel product code GEL.
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