- Newest Presidium model, never used, tester still sealed.
- With box, all accessories, booklets, USB wire and protective pocket.
- Excellent handheld tester that recognizes between diamonds and 31 types of colored gemstones. This is the handheld version of Presidium's Gem Tester/Colored Stone Estimator.
- It has a digital LED screen that allows you to select from 12 colors to make results even more accurate.
- Changeable probe tip.
- Works with batteries or the USB cord provided.
- Detects stones based on thermal conductivity.
