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Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.
princess 0
you must write down the readings and do some simple arithmetic with a calculator (we do also stock a computerised SG tester
and it doesn't rub off
Works with any stone
Two testers in one
Presidium standard+duo probe, new (after oct 2020) models Reading magnifiers that rest on page princess 0Details There are two types of probe depending on whether you bought your tester before or after October 2020, please check carefully that you are buying the right one. This probe has the new style connector. It fits the following Presidium electronic gem testers: our ref. Gemtest P2 Presidium's ref. PGTII and also the NEWER versions (this one) of: our ref. gemtest duo Presidium's ref. PDT S7 Not sure which you have? See our information sheet.
US$ 35.99
US$ 29.99
US$ 25.99