Diamond Test Pen, High Precision Jewelry Diamond Tester with LED Digital Display, 5 Minutes Since Last Measurement/Auto Calibration Value, Suitable for Novices

Automatic calibration values Use metal detection to identify common jewelry types Clear, easy-to-read analog panel, easy to read Specifications: Measurement range: Probe tip (0.48mm), to test objects up to 1.00mm (0.01ct) Product weight: 105G Power source: 3 AAA batteries (not included) Highlighted independence: 5 minutes from last measured Dimensions: 16 6x166 mm 36x31 mm (6.5x1.4x1.2 inches)

• Retractable Probe Tip: Retractable probe tip applies even pressure to the stone during testing, ensuring more reliable results. The probe tip is only 0.6mm thin and can test small colorless diamonds of 0.02 carats. EASY TO USE: The diamond test pen is easy to use, and requires no professional to get results. Simply turn on our diamond detector. Place the tip of the diamond tester on the stone (press lightly). QUICK WARM UP TIME: The gem tester is fast