High-precision diamond tester – Gemstone detector pen for jewelry, with case, ideal for experts and beginners

General Description This diamond testing pen is a high-precision testing tool designed for both experts and novices. It allows for quick and accurate differentiation between diamonds and simulants without damaging the gems. Its intuitive design makes it easy to use, with audible and visual indicators for test results. Technical Specifications Material: Plastic + electronic components Color: Black Product Size: 160 x 40 x 23 mm / 6.29 x 1.57 x 0.90 inches Power Supply: 1 x 9V 006P battery (not included) Usage To use the tester, turn on the power and wait for it to heat up. Press and hold your finger on the heat-conducting plate, then use the probe to make 90-degree contact with the item to be tested. Other information: High-quality materials: solid ABS casing, high-sensitivity alloy probe, protective rubber cover, thermal conduction plate. Portable design with a leather bag for easy storage and portability. Indicators: Beeps and LEDs for test results (Acousto-Light: Diamond, Continuous Buzz: Metal, No Sign: Simulator).