Features: High Quality Material: These jewelry distinguishing tools are made of quality ABS, metal and acrylic lens, reliable, firm, colorfast for a long term using, not easy to fade or break during use. The fine workmanship will offer you a nice visual effect. How To Test Diamond Turn on the switch. Make sure only 1 light is lighting up on the scale. Wait few seconds for the probe to heat up until Lamp on ready OK. Turn on the lights numbers corresponding to the indoor temperature and diamond weight. If don't know. Set 4 lights is lighting up on the scale. Start test diamond, no need to adjust the switch switch. Use the diamond discriminator probe to make 90-degree contact with the measured object, and observe the indicator light change. It needs a little bit of force to stop it on the diamond surface and make full contact. If unsuccessful, please repeat the second step. Diamond Tester Pen Test result analysis If lights >= 9 and have sounds, it is true diamond. If lights <9 and no sounds, it is not diamond. If lights is 7 or 8, it is true crystal. If lights is 6 or 7, it is true jade. If lights is 4 or 5, it is glass. Don't test metal,Don't wear gloves. In a low temperature environment, the battery discharge is weakened. Please raise the battery temperature to above 10 degrees Celsius. The test takes a few minutes, please turn off the power after the test is complete. Package include: 1 x Jewelry Tester 1 x Jewelry Loupe 1 x Leather Pouch Case for Pen, 1 x Leather Pouch Case for Microscope 1 x 9V Battery 1 x Testing Platform 1 x Tweezers?Application Range?Apply to Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal, Education, Geography, Home And Office and more. ?Practical Jewelry Loupe?Magnifying glass (small microscope) equipped with 60X LED illumination. Diamond test pen can be used for gems, coins, antiques, stamps, reading, inspection, etc. Diamond tester pen is designed for fast, precise and safe diamond testing. ?Multipurpose?This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, such as diamonds, jades, emeralds, crystals, agates, gems and so on, making it possible for you to distinguish and observe them clearly and easily. ?Clear Screen Design?These high accuracy diamond testers are designed with a clear screen, so you can get the useful data quickly; The item you are testing will be a true diamond when the data is above 9, and a true emerald crystal agate when the data is 7, you will be able to know in a few seconds whether an item is fake or not, saving your time to recognize. ?Complete Tool for Diamonds?Diamond tester package comes with 1 x Jewelry tester, 1 x Jewelry loupe, 1 x leather pouch case for pen, 1 x leather pouch case for Microscope, 1 x 9V battery, 1 x Testing Platform, 1 x Tweezers, 7pieces in total, which are complete and practical for you to test or observe diamonds, bringing you a good using experience.Date First Available: October 7, 2022. Country of Origin: China. Manufacturer: HPX. Item Weight: 8.4 ounces. Best Sellers Rank: #161,443 in Arts, Crafts & Sewing. Customer Reviews: 3.7 out of 5 stars 3 ratings 3.7 out of 5 stars. : B0BHKWM8DX. Item model number: CZB-00104. Product Dimensions: 7.09 x 3.94 x 1.57 inches.