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Presidium Gem Tester - the only affordable electronic gem testing
device in the world!
The only gem tester used on the Antique Roadshow!
The Presidium Gem Tester / Color Stone Estimator provides a
quick, easy, laboratory proven way to identify diamond and
separate the most popular colored gemstones from one another.
This valuable tool can eliminate human error when identifying
precious gems. The Presidium Gem Testers accurate performance
is based on the fact that different gemstones conduct heat at
different rates. Simply touched the Gem Testers sophisticated
thermoelectric probe to the surface of any mounted or loose stone
and the specially calibrated dial will show you the relative heat
conductivity of the material.
The Presidium Gem Tester / Color Stone Estimator is made under
rigid quality standards. It is easy to operate and convenient to own.
The lightweight portable unit is powered by two (2) AA 1.5 V
batteries or the AC adapter provided. Calibration is made easy with
the two test discs mounted into the frame. The solid state probe
pen requires no warm up time between tests and includes a built-in
metal detector which will alert you if you have accidentally touched
the mounting instead of the stone.
Included:
Presidium Gem Tester with a testing probe
Soft case and hard carrying case
120V/60Hz AC Adapter (U.S.)
Owner's manual and tester warranty (2 year warranty)
Packaging
To purchase the Presidium Electronic Gem Tester, and other
Presidium gem tester models, please visit Renninger’s Antiques
Market, Adamstown, Pa-Booth B12 or contact Len Possoff at 215-
275-0870 or poss71@verizon.net
