This gem indicator is the only hand-held tester in the
industry specifically for colored gemstones.
It indicates diamonds and 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
The indicator probe consists of two linked thermometers;
One which is heated electronically, while the other is cooled by the
gemstone being tested. The difference in temperature creates
an electrical output, which is then amplified and displayed
on the new easy-to-read clear digital organic LED display screen.
Industry's thinnest probe tip (0.45mm) for testing gemstones from 0.2ct
Retractable thermoelectric tip that maintains constant pressure against gemstone
Patented refined changeable probe tip which ensures minimal equipment downtime
Metal buzzer alert and low battery indicator
USB connection to PC for more value-added functions