PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres

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AN INDUSTRY LEADER The Presidium Gem Tester II is based on the invention of Professor Julian Goldsmid from the University of New South Wales in Australia. It was developed to distinguish between diamonds and its other simulants using the principles of thermal conductivity. The Presidium Gem Tester II with Assisted Thermal Calibration provides a quick and easy way to identify diamondsmoissanites and separates up to 16 common colored gemstones based on their thermal conductivity with its clear and direct analog display. NEW INCLUDED CALIBRATION FEATURE As PGT II works on the thermal conductivity of the gemstone, its measurement will be affected by the testing environment. WIth the improved function of Assisted Thermal Calibration (ATC), the user is now able to easily calibrate the tester according to the testing environment for a reliable and consistent reading. Review: Happy Review: المنتج غير اصلي ولا يعطي نتائج صحيحه وتأخر استرجاع المبلغ - لقد تم تجربة المنتج على احجار اللماس صحيحه ١٠٠٪؜ ولم يعطي نتيجه صحيحه كل ذلك اقل بنسبة ٣٠٪؜ وهاذي نسبة تخلي الواحد يتراجع او يفرط في قطعه ١٠٠٪؜ صحيحه والشي الاخر لم تتم اعادة المبلغ الى الان مايقارب ١٤ يوما واكثر ولا زلت انتظر وكل يوم اتصل ولا احد يفيدني