Portable Thermal Conductivity Meter Drill Pen High Accuracy Diamond Gem Detector Diamond Tester Professional Jewelry Tester,Detection and Identification of The Authenticity of Diamond Crystal Tools - EWUHRY, 9v

• Function: The jewelry tester is designed for fast, accurate and safe diamond testing. It is a portable electronic tool used to distinguish real and fake diamonds. If the stone is fake crystal, imitations such as cubic zirconium (CZ) will not react to it. In seconds, you will be able to tell if something is fake. Material: The diamond detection pen is constructed of high quality plastic and comes with its own leather case packaging. Small enough to fit in any backpack. Simple and precise operation, powered by a DC 9V battery (included). Scope of application: The diamond detector is an electronic instrument specially designed and manufactured according to the thermal conductivity of diamonds to identify the authenticity of diamonds. It is also suitable for detecting/identifying the authenticity of jade, jade, crystal, etc., as well as the hardness of gemstones. How to use: Install the battery, turn on the power light, and the preheat light will turn on after a while! During the test, adjust the three-color indicator to the fourth grid, and then press the triangle iron sheet on the back with your hand, and the probe is vertically aligned with the object to be measured. Features: The diamond gem tester emits an audible sound to provide accurate readings. If it is a diamond, the light will jump to the ninth grid or above, that is, the red light area, and a beep will sound. if it is a jade, the light will turn on five or six degrees, indicating that the hardness of the jade has reached, and there will be no sound.