FEATURES PRECISE TESTING TECHNOLOGY - Our diamond tester pen utilizes advanced technology to accurately identify genuine diamonds. Enjoy peace of mind knowing your gemstones are evaluated with utmost precision and reliability for every test. EASY TO USE - Designed for simplicity, this tester empowers anyone to effortlessly check gemstones. Just turn it on, wait briefly, and place the tip on the stone for immediate and accurate results. CLEAR DISPLAY - Featuring a bright display, our tester provides clear and easy-to-read results every time. The intuitive interface ensures you can quickly determine the authenticity of your gemstones without any confusion. LIGHTWEIGHT AND PORTABLE - The compact design makes this diamond tester pen incredibly easy to carry in your bag. Take it with you anywhere, ensuring you can conveniently test gemstones whenever you need. VERSATILE USE - Ideal for jewelers, gemologists, and enthusiasts alike, this diamond tester is perfect for testing diamonds and other gemstones. Ensure your collection is authentic with this essential tool for gemstone evaluation. SPEC Probe Material: Alloy Power Specification: DC 9V battery (not included) Size: Package Included: 1 * Professional Diamond Tester Pen NOTES If 9 indicator lights illuminate, it indicates a genuine diamond. If 7 indicator lights illuminate, it indicates a genuine jade, crystal, or agate. Accurate measurements are not possible below 10°C or above 35°C. Testing in a windless and dust-free environment provides more accurate results. Ensure the surface temperature of the item being tested matches the indoor temperature. The surface of the item to be tested must be clean. Before each use, calibrate with glass, then perform the test. Ensure the probe makes full contact with the item at a 90° angle.
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