{"title":"Red Gem \u0026 Metal Testers","description":null,"products":[{"product_id":"presidium-digital-gem-indicator-for-coloured-gemstones-pgi","title":"Presidium Digital Gem Indicator for Coloured Gemstones PGI","description":"\u003cp\u003e\u003cstrong\u003ePresidium Digital Gem Indicator for Coloured Gemstones PGI\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003eThe Presidium Gem Indicator, the only handheld tester in the industry specifically for coloured gemstones, indicates up to 31 different types of coloured gems based on their thermal conductivity and even features a colour input function that allows users to select from a range of 12 common colours, thereby achieving more accurate results. With an easy-to-read clear digital LED screen, this smart thermal tester also comes with the Presidium patented refined changeable probe tip, which ensures minimal equipment downtime.\u003c\/p\u003e\n\u003cp\u003eThe Presidium Gem Indicator is an enhanced and more convenient handheld version of the revolutionary Presidium Gem Tester\/Coloured Stone Estimator.\u003c\/p\u003e\n\u003cp\u003eThe Presidium Gem Indicator probe consists of two linked thermometers; one which is heated electronically, while the other is cooled by the gemstone being tested. The difference in temperature creates an electrical output, which is then amplified and displayed on the new digital organic LED display.\u003c\/p\u003e\n\u003cp\u003eIt is simple to use, easy to maintain, and quick in giving you intelligent results about your coloured gemstones.\u003c\/p\u003e\n\u003cp\u003eFeatures\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTests an extended range of 31 different gemstones\u003c\/li\u003e\n\u003cli\u003eColour input function to further separate gemstones for more accuracy\u003c\/li\u003e\n\u003cli\u003eEasy-to-read results on clear digital LED screen\u003c\/li\u003e\n\u003cli\u003eQuick results in less than 6 seconds\u003c\/li\u003e\n\u003cli\u003eIndustry’s thinnest probe tip (0.45mm) for testing gemstones from 0.02ct\u003c\/li\u003e\n\u003cli\u003ePatented refined probe tip\u003c\/li\u003e\n\u003cli\u003eMetal buzzer alert and low battery indicator\u003c\/li\u003e\n\u003cli\u003eSleek chrome-brushed ergonomic grip\u003c\/li\u003e\n\u003cli\u003eUSB port for alternative power source and connectivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBenefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAlso able to distinguish diamonds from other coloured gemstones\u003c\/li\u003e\n\u003cli\u003eSelection of 12 common colours available for more accurate results\u003c\/li\u003e\n\u003cli\u003eRetractable thermoelectric probe tip that ensures constant pressure between probe and gemstone, for enhanced accuracy\u003c\/li\u003e\n\u003cli\u003eSlim, light, portable and handheld for convenience\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePower \u0026amp; Battery\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3 x AAA alkaline batteries (approximately 3 hours of continuous use)\u003c\/li\u003e\n\u003cli\u003eUSB port to be used with USB cable and appropriate Presidium Universal USB Power Adaptor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended Operating Conditions\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptimal Operating Temperature: 23°C – 27°C (73°F – 80°F)\u003c\/li\u003e\n\u003cli\u003eAdvised to run the calibration process if you are operating in ambient temperatures of 20°C – 33°C (68°F-91°F).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDimensions\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 170mm (6.69 inches)\u003c\/li\u003e\n\u003cli\u003eWidth: 31mm (1.20 inches)\u003c\/li\u003e\n\u003cli\u003eHeight:28mm (1.10 inches)\u003c\/li\u003e\n\u003cli\u003eWeight (without batteries): 60.0grams (2.11 oz)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Presidium","offers":[{"title":"Default Title","offer_id":59398076432718,"sku":"PRESIDIUM-PGI","price":323.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719013874-91087300.jpg?v=1775927144"}],"url":"https:\/\/maddisonsofdurham.co.uk\/collections\/red-jewellers-tools-gem-metal-testers.oembed","provider":"Maddisons of Durham","version":"1.0","type":"link"}