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

Features:Easy to use even for a new beginnerEmit audible sounds to give accurate readingDiamond indicator will be showed if the stone is a REAL diamond (Green light)Metal alert (continuous buzzing sound when user accidentally touches metal ratherthan stone )Large / small switch for testing diamonds +/ - 8 pointsTo emit sounds to give accurate readingLCD displayLED indicatorIf stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reactionOperating methods:open the power, the power indicator light, instrument began preheating, after afew seconds instrument can be used.*Take the naked drill will be testedintosupport 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 weightof the tested diamonds and measuring the temperature place move bright severalleds.*take down needle sheath, handheld instruments, the forefinger of conductiveplate; touch instrument back cover That probe vertically and measured truediamond mesa gently contact.*carefully watching instrument, if the rest of theemitting diode light reflect yellow, when light to nine diode, accompany beepingthis explains those tested for a real diamond. By contrast, if lit, andinsufficient nine instrument does not send feng chirp, explain fake 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: BlackPacking includes:1 x Diamond tester (Not inclu