ForSale PRESIDIUM DUO TESTER GEM GEMSTONE DIAMOND TESTER PDT-S7
The Presidium Duotester is the only tool on the market that provides the user with two proven tests for diamonds and the ability to differentiate between similarly colored gemstones. The easy-to-read dial of the Duotester is calibrated to indicate the differences in thermal conductivity of the most popular gemstones and simulants. Simply touch the tip of the thermal conductivity probe pen to a mounted or loose stone. Diamond is easily identified by any reading in the green area of the dial, and colored gemstones can be easily differentiated from one another by the clearly labeled zones provided in the red area. Even coated gemstones can be accurately tested. Digital Reflectivity Measurement: Diamond and its simulants reflect light proportionally to their respective refractive index. The Presidium Duotester provides the user with a digital reflectivity meter and an easy to use Simulant Reflectivity Chart. The reflectivity number from the meter is simply cross-referenced with the chart to identify the stone. An unknown gemstone can be tested for its thermal conductivity and, if necessary, the results can be confirmed with a quick and simple reflectivity test. All stones indicated as diamond by the thermal tester should be tested with the reflectivity meter to test for Synthetic Moissanite, thus providing double the assurance for the same price. Convenience: The thermal probe pen includes a metal warning detector that emits a audible buzz if the gem mounting is accidentally touched. The Duotester can be powered by 5 AA alkaline batteries or by the electrical adapter provided. 1 year International warranty from Presidium Instruments. Does not include Diamond Simulant Kit Size : L-165mm x W-77mm x H-77mm (6.6" x 3.0" x 3.0") Weight : 319 gms (11 Ozs) Easily tests coated gemstones Test for diamond and all known simulants, including Synthetic Moissanite Uses two testing methods to test for diamond and simulants: thermal conductivity and digital reflectivity Metal detector warns user if accidental contact has been made with gem mounting 1 Year Manufacturer Warranty
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