Rechargeable Diamond Tester Pen with UV Light High Accuracy Electronic Jewelry Gem Selector for Novice and Expert Use

Description

Features:【Intuitive & Safe 】Featuring an LCD display and LED indicator, our diamond tester delivers precise, easy-to-read results quickly and safely—without damaging genuine diamonds. Ideal for professionals, collectors, and jewelry business owners.【Easy One-Button Testing】Simply turn on the pen, gently touch the gemstone tip, and wait for the audible alert. Real diamonds trigger a reading above 9 with both light and sound signals; no reaction indicates a fake stone like cubic zirconia.【Adjustable Setting for Stone Size】Easily adapt to different gem sizes using the carat adjustment button: activate 1 light for diamonds over 1.0 carats, 2 lights for 0.5 carats, and 3–4 lights for small or finely-cut stones.【Reliable Thermal Conductivity Detection】The tester uses advanced thermal conductivity sensing to distinguish diamonds from imitations. Note: metals may trigger high-frequency sound due to similar conductivity—always follow correct testing procedures and avoid use on metal, skin, or liquids.【Convenient & User-Friendly】Designed for effortless use with clear visual and audio cues. For accuracy, always touch the rear panel during testing and ensure proper tip contact—flashing or shutdown may indicate incorrect .Specification:Model：KD-MD1Working voltage：3.3-4.2VWorking temperature：10-40℃Product size：158*45*21mm Adapter (not included in this instrument)Adapter voltage：120-240V Data cable plug：type-cAdapter power：1A/2AAdapter output voltage：5VInternal lithium battery parameters Model：14500Voltage：3.7VCapacity：800mAhPacking List:1 x Diamond Tester Pen1x 1M USB Cabel1 x Testing Platform1 x User Manual