Presidium Gem Indicator (PGI) for coloured gemstones

Identifies 31 different coloured gemstones, distinguishes between diamonds and other coloured gemstones using thermal conductivity.
Features a 12 colour input function which allows greater accuracy in the results.
This tester is not capable of distinguishing between natural and synthetic stones nor between diamonds and moissanite.

Specifications:

• Retractable thermoelectric probe ensures constant pressure between the stone and the tester
• Very fine patented probe tip (0.45 mm) able to test gemstones as small as 0.02 ct
• 2 calibration discs to guarantee accuracy
• Ergonomic chrome plated handle design for a better grip
• Clear, easy-to-read LED digital display
• Test results in under 6 seconds
• Metal alert buzzer
• Battery level indicator
• Runs on alkaline batteries (3xAAA) not supplied: approx. 3 hours autonomy
• Auto switch off after 10 minutes of inactivity
• Connected to OMI platform for updates and user support
• Supplied with USB cable, instruction manual, guarantee card and protective case
• Weight: 60 g