AuRACLE Model AGT-1 Electronic Gold Tester from GemOro!
The world's finest and most accurate gold tester available on the market.  NO MESSY GELS AND NO CHEMICALS WHATSOEVER!  Now you can finally quickly, safely and accurately buy and appraise gold with confidence.  This tester is absolutely the world's most user-friendly, best performing handheld electronic gold tester with unmatched accuracy.  This unit tests all colors of gold from 6K to 24K and platinum with ease.  Follow easy steps to identify non-gold, gold plate and gold filled as NA.  Results are immediate and require no waiting between tests.  All you need to do is put the metal on the square plate and touch the probe to the metal, the LED will instantly light up which indicates the karat.  The pen probe that comes with the unit has no harmful chemicals and is actually made of a saltwater solution.  It leaves no residue on the metal being tested, so you don't need to worry about ruining any expensive jewelry.  The pen probe will last approximately 5,000 tests with proper care.  Once the probe dries up, simply unplug the probe, plug a new probe in, and you are ready to begin testing again.  This unit is compact and portable and can run on the supplied 9V alkaline battery or the optional adapter.  Inside the box, you will receive one tester, one probe, one battery, and easy to follow instructions.  This is definitely the last gold tester you will ever need! This unit carries a 1 year manufacturer warranty.