Gem Diamond Tester, High Precision Jewelry Diamond Tester with Indicator Plate and Light, Minimum Measurement: 0.01CT, Automatic Calibration,

Features: 1. Using metal detection to identify the type of ordinary gemstone 2. Automatic calibration 3. Clear and readable analog panel display, easy to read 4. Portable tester that can be used anywhere Specifications: Name: Professional and efficient gemstone detector Working temperature -18 ° C-27 ° C (65 ° F-80 ° F) Storage temperature -10 ° C-50 ° C (50 ° F-122 ° F) Power supply: 3 AAA batteries or AC adapter (batteries are not included in the packaging) Battery life: 2.5 hours of continuous use with alkaline batteries (batteries not included in packaging) Standby time: 5 minutes from the last measurement time Simulated display size: 73.5mm X44.0mm Weight: 1kg Packing list: Gemstone and Diamond Tester * 1

• 【 Best Efficiency 】: Our diamond testing pen is designed specifically for your efficiency and features intuitive pointer fields, allowing you to work quickly and efficiently.
• 【 Telescopic Probe Tip 】: The principle of thermal conductivity distinguishes diamonds and has automatic calibration function. The telescopic probe tip can measure a minimum of 0.01 ct.
• 【 Technical Support 】: This multifunctional device is equipped with multiple power sources, making it the perfect jewelry tester. It can be powered by a USB cable and AAA battery.
• 【 Fast And Safe 】: This diamond selection tester is designed specifically for fast, accurate, and safe diamond testing. It is harmless to diamonds.
• 【 Precise And Reliable Testing Tool 】: A professional diamond tester designed for quickly and easily distinguishing diamonds, moissanite, and other artificial gemstones.