Editor Reviews:

Product Description:
This unit utilizes the combined principles of thermal and electrical conductivity from Presidium's patented technology. The measuring probes together with the electronic circuitries are designed to pick up and segrate data collected from the stones via a customized micro-controller. Within a split second, the test result will be displayed. Features include: surface mount technology, retractable tip to ensure the accuracy and consistent pressure between the measuring probe and gemstone, no waiting time between tests, clear LED display for diamond, moissanite, stimulants and metal, built-in metal detector, low battery indicator and automatic power down. Runs on AAA batteries (not included) or AC adapter 120v (see part number 56730). 1 year factory warranty.