Diamond Tester Pen,Professional Diamond Tester,Portable Electronic Diamond Tester Tool,for Jewelry Jade Ruby Stone

Description: The tip of the retractable thermoelectric probe ensures constant pressure between the probe and the stone Probe point (0.6 mm) to test stones as small as 0.02 ct A metal alarm buzzer ensures that the point of the probe is in contact with the stone during the test Clear analog dial and easy to read Can distinguish 16 types of precious stones Integrated glass and calibration test disk (CAL) for reference Specification: Product name: Multi-use gems measurement instrument Length: 125 mm (4.93 in) Width: 90 mm (3.55 in) Height: 70 mm (2.76 in) Package size: 26*17*19cm Package weight: 1kg

• Simple and easy to use: Clear and easy to read analog dial; can distinguish 16 types of precious stones.
• Includes supported thermal calibration: Now caliber your appliance for your test environment.
• The finest retractable probe: with retractable probe point. The precious stones tester has been redesigned to be more compact, robust and portable.
• Fast and Sure: This diamond selection tester is designed for fast, precise and safe diamond tests. No pain in diamonds.
• versatile and reliable: coherent and reliable results each time. Identifies diamonds/Moissanites.