{"product_id":"presidium-duo-tester-ii-for-diamonds-gemstones-pdt-ii","title":"Presidium Duo Tester II for Diamonds \u0026 Gemstones PDT II","description":"\u003cp\u003e\u003cstrong\u003ePresidium Duo Tester II for Diamonds \u0026amp; Gemstones PDT II\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003ePresidium Duo Tester II (PDT II) is the only comprehensive tool on the market that combines two proven testing methods for gemstones. PDT II differentiates diamonds from its simulants based on both their thermal conductivity and reflective indexes. Coated gemstones can also be generally tested with the PDT II.\u003c\/p\u003e\n\u003cp\u003eThe Presidium Duo Tester II comes with a probe pen that has a retractable probe tip which ensures consistent pressure against the gemstone during testing for more reliable results. With the industry’s thinnest probe tip size of 0.6mm, PDT II tests gemstones as small as 0.02ct.\u003c\/p\u003e\n\u003cp\u003e*Does not differentiate between natural and synthetic coloured gemstones.\u003c\/p\u003e\n\u003cp\u003eFeatures\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssisted Thermal Calibration (ATC)\u003c\/li\u003e\n\u003cli\u003eBuilt-in Glass and Calibration (CAL) test discs for reference\u003c\/li\u003e\n\u003cli\u003eRetractable thermoelectric probe tip that ensures constant pressure between probe and gemstone\u003c\/li\u003e\n\u003cli\u003eIndustry’s thinnest probe tip (0.6mm) for testing gemstones as small as 0.02ct\u003c\/li\u003e\n\u003cli\u003eMetal alert buzzer to ensure that probe tip is in contact with gemstone during testing\u003c\/li\u003e\n\u003cli\u003eLarge easy-to-read analog dial with 16 colored gemstones\u003c\/li\u003e\n\u003cli\u003eDigital index LED display for reading of reflectivity value of the gemstone (based on conversion from refractive index)\u003c\/li\u003e\n\u003cli\u003eBuilt-in simulant reflective properties reference chart\u003c\/li\u003e\n\u003cli\u003eDiamond simulant set for calibration of reflectivity meter (optional item provided by Presidium)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBenefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTests gemstones using dual tests of thermal and reflectivity properties to know more about the gemstone\u003c\/li\u003e\n\u003cli\u003eAccurate and consistent tests for both indoors and outdoors operation\u003c\/li\u003e\n\u003cli\u003eTests gemstones as small as 0.02ct\u003c\/li\u003e\n\u003cli\u003eClear and visible display for ease of reading measurements for both thermal and reflective test\u003c\/li\u003e\n\u003cli\u003eNo waiting time between tests\u003c\/li\u003e\n\u003cli\u003eSimple and easy to use\u003c\/li\u003e\n\u003cli\u003eRuns on 5 AA batteries or with recommended Presidium AC adaptor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePower \u0026amp; Battery\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5 x AA alkaline batteries (approximately 3 hours of continuous use)\u003c\/li\u003e\n\u003cli\u003eAC port to be used with appropriate Presidium Power Adaptor (not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended Operating Conditions\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptimal Operating Temperature: 18°C – 27°C (65°F – 80°F)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: 10°C – 51°C (50°F – 124°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDimensions\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 172mm (6.77 inches)\u003c\/li\u003e\n\u003cli\u003eWidth: 77mm (3.03 inches)\u003c\/li\u003e\n\u003cli\u003eHeight: 85mm (3.34 inches)\u003c\/li\u003e\n\u003cli\u003eWeight (without batteries): 260grams (9.17 oz)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Presidium","offers":[{"title":"Default Title","offer_id":59398083150158,"sku":"PRESIDIUM-PDTII","price":454.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719014754-76627500.jpg?v=1775927193","url":"https:\/\/maddisonsofdurham.co.uk\/products\/presidium-duo-tester-ii-for-diamonds-gemstones-pdt-ii","provider":"Maddisons of Durham","version":"1.0","type":"link"}