Presidium Duo Tester PDT This portable advanced duo tester instantly differentiates diamonds from other simulants with ease. it is the only Gemmological instrument in the industry that can examine gemstones using both thermal and reflectivity testing.
• Features the industry's thinnest retractable probe tip (0.6mm) which allows for consistent pressure when set against the stone • a clear and easy to read analogue dial provides clear results from the 15 listed coloured gemstones • The digital LeD index display identifies the stones reflectivity value. • can test stones as small as 0.02ct and will alert you if you've hit metal to ensure accurate results, coated stones can also be generally tested • Built-in; simulant reflective properties chart, simulant and diamond test discs for reference and a metal stone rest • requires 5 x aaa alkaline batteries • Supplied with a 2-pin plug for alternative power supply
997 2709 Price/£: 348.45 For the gemstone section see PAGE 132
Presidium Carat Scale
a professional, compact digital scale ideal for weighing; stones, jewellery and metal. Featuring advanced circuitry design and surface mount technology.
• can measure in various weights including; grams, carat, troy ounce and grain • contains a built-in start up calibration ensuring accurate class ii measuring • clear and visible LcD digital display that allows easy reading of measurements and a 100ct weight supplied for simple calibration • The attached transparent lid provides protection as well as aiding the weighing process and eliminating external objects affecting the result • a low voltage indicator and automatic cut off after 10 minutes • Will let you know when it's ready to weigh after tare • requires 4 x aaa alkaline batteries
997 2719 Price/£: 241.39
DISCLAIMER
All equipment must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall Cooksongold be liable for consequential loss sustained in connection with any item. It is your responsibility to regularly check equipment against known samples, to ensure that it has not developed a fault. All of Presidium products are RoHS Compliant with the RoHS regulation as well as 4R Compliant with WEEE regulation.
