Portable Diamond Tester Pen Detecting Diamond Authentic Jewel Hardness Pen Identification Instrument

Features: Easy to use even for a new beginner Emit audible sounds to give accurate reading Diamond indicator will be showed if the stone is a REAL diamond (Green light) Metal alert (continuous buzzing sound when user accidentally touches metal rather than stone ) Large / small switch for testing diamonds +/ - 8 points To emit sounds to give accurate reading LCD display & LED indicator If stone is Fak'e crystal, a simulant such as cubic zirconium ( CZ ) will be no reaction Operating methods: open the power, the power indicator light, instrument began preheating, after a few seconds instrument can be used. *Take the naked drill will be testedinto support tray appropriate sunken hole, and its mesa upwards. Those already inlay, need not put tray hole in, you can using handheld its. *according to the weight of the tested diamonds and measuring the temperature place move bright several leds. *take down needle sheath, handheld instruments, the forefinger of conductive plate; touch instrument back cover That probe vertically and measured true diamond mesa gently contact. *carefully watching instrument, if the rest of the emitting diode light reflect yellow, when light to nine diode, accompany beeping this explains those tested for a real diamond. By contrast, if lit, and insufficient nine instrument does not send feng chirp, explain fak'e diamond or ape. Specification: Dimension: 16 x 4 x 2.2 cm/6.3 x 1.6 x 0.9 '' Powered by DC 9V battery x 1 (Not included ) Color: Black Packing includes: 1 x Diamond tester (Not including battery) 1 x Protected leather bag Notice: 1. Please allow 1-3mm error due to manual measurement.Pls make sure you do not mind before you bid. 2. The color may have different as the difference display,pls understand. Detail pictures: