KONTAKTNÝ HROT PRE INDIKÁTOR DRAHOKAMOV PRESIDIUM

The Presidium® Gem Indicator is the only handheld tester in the industry specifically for
colored gemstones. It indicates up to 31 different types of colored gems based on their
thermal conductivity and even features a color input function that allows users to select
from a range of 12 common colors, thereby achieving more accurate results.

It is recommended to use the Presidium® Gem Indicator in environments at ambient
temperatures of 23°C - 27°C. Calibration using the provided calibration disk is also
recommended when starting to use the product or when using the product in different
environments.

Instructions
Color Chart
Thermal Conductivity Chart