Presidium GemTester Pen Probe- IPresidium GemTester Pen Probe I is an add on accessory to be used specifically with Presidium Gem Tester and Duo Tester only. Usually, it comes bundle with our Presidium Gem Tester. However, it can be purchase as a replacement tool seperately (without needing to buy the whole set of the presidium tester) once your older pen probe is damaged or missing.

user safety features (such as UV light shutdown)

be it a householder or a Jewelry Professional for measuring the ring size by inserting the sizer onto fingers of the customers

TELEC Input Power: DC(12V⎓5A) AC(100-240V

Ideal for single piece jewelry or gemstone

Max Capacity: Can measure stones up to 25mm in diameter

reliable results over the years

Easy to Use and Read

even if the box is tilted

Gemstone Weight Estimation Table: Included for easy estimation of carat weight

5mm) up to 5ct (10

Stylish ergonomic design for maximum comfort and convenience

allowing you to view and manage your samples directly on your desktop