Qualitest range of advanced Gold Testers are ultimate tools for Jewelry Industry, Gold & Precious Metal Research Labs, Jewelry Stores, Banks, and Pawn Shops for accurate determination of the carat and purity of gold.
GKS-300 is the basic model, suitable for gold and can measure the carat of gold specimens weighing between 0.001 - 300g.
GK-series gold testers can quickly, easily and accurately determine purity of gold karat by two weighings (By measuring the Specific Gravity): one with the piece in a water tank, the other normally. An internal computer does all the calculations for you.
- Works only for solid metal pieces without set stones.
- No acid, needles, or test stones needed
- Leaves no scratches or stains on your gold after measurements
- Wide karat range—from 9 to 24K
- Also functions as a normal gram scale