Diamond Tester Pen,Jewelry Diamond Tester,Gem Tester,Thermal Conductivity Meter,Diamond Selector for Novice and Expert

Specifications:Product Name: Multi-purpose Gemst Measuring InstrumentLength: 125mm (4.93 inches)Width: 90mm (3.55 inches)Height: 70 mm (2.76 inches)Weight: (without batteries): 220 g (7.76 oz) Features:Products Included:1 x Gem Diamond Tester (batteries not included)Attention.Due to the light and monitor, there may be colour difference between the real object and the photo, please take the real object as the standard.The above data is for reference only, the size is measured manually, there may be 1-3cm error, please prevail in kind, thank you.

• ♦【Versatile And Reliable】Consistent and reliable results every time. Identifies Diamonds
• ♦【Thinnest Retractable Probe Tip】With retractable probe tip. The gemstone tester has been redesigned to be more compact, robust and portable.
• ♦【Simple And Easy To Use】Clear and easy-to-read analogue dial; can distinguish 16 types of gemstones.
• ♦【Includes Supported Thermal Calibration】Calibrate your device now easily for your test environment.
• ♦【Fast And Safe】This diamond selection tester is designed for fast, precise and safe diamond testing. No harm to diamonds.