Diamond Tester, High Accuracy Jewelry Diamond Tester Pen?60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter- Perfect for food, tablets, powder, gemstones, coins, jewelry, weed,gold, silver, coins and etc. Accuracy and portability are what we pursue all the time, we've been working on it to becoming your precision stewards. How To Test Diamond: Turn on the switch. Make sure only 1 light is lighting up on the scale. Wait few seconds for the probe to heat up until Lamp on ready OK. Turn on the lights numbers corresponding to the indoor temperature and diamond weight. If don't know. Set 4 lights is lighting up on the scale. Use the diamond discriminator probe to make 90-degree contact with the measured object, and observe the indicator light change. It needs a little bit of force to stop it on the diamond surface and make full contact. If unsuccessful, please repeat the second step. Working power supply: DC 9 V battery ( included) Note: Operating temperature in the range of 10-35 degrees Celsius Don't wear gloves Don't detect metal Tested under windless conditions Keep humidity below 80% The metal panel must be touched when testing diamonds Power off after testing 60X Microscope Magnifying Glasses Microscope with light for easy work Bright LED light of the Magnifying Glass provides enough light at any dim conditions; The pocket size is convenience to carry, you can use it in everywhere With a Faux Leather Pouch, Can Protect it From Scratch, Attrition, Etc. Package include: 1 x Jewelry tester 1 x Jewelry loupe Popular among professionals, hobbyists, coin enthusiasts, and business owners alike. Excellent tools. Excellent Value. Great gift idea. Easy to use Place the tip of the diamond tester gently on the gemstone. If the diamond is fake, crystalline or cubic zirconia, the tester will not beep. An excellent diamond tester tool kit, suitable for handling any exposed or mounted diamonds and gems.Our gemstone tester has an intuitive design, light and portable, and the jewelry diamond tester is equipped with LED lights and audio instructions. As long as the tip is perpendicular to the test masonry and the switch is pressed, the result can be obtained. Quick IdentificationYou just turn on our diamond test pen detector; place the tip of the diamond tester on the gemstone, and a single tap is enough. In providing fast and accurate results. You will be able to know in a few seconds whether an item is fake or not. InitializationAfter powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results. All test must be done by two hands, one for hold the diamond and one for the diamond tester. As for the hand which hold diamond tester, you have to TOUCH the electricity conductive panel on the back of the unit. For DiamondFor testing diamond, it will emits beepingbeepingbeeping in a low frequency, 1 timesecond. Meanwhile 14 pieces of the RED LAMP box of the level meter light onthe bigger the size of the stone is, the more pieces of the red lamp box of the level meter light upWhen Testing Imitation stone,such as cubic zirconium CZ , crystal, glass, there will be no sound, and the red lamp wont light. Metal AlertWhen Testing metal, it will emits beepingbeepingbeeping in a high frequency,5timessecond. The thermal conductivity of the metal is very high and can give the same indication as a diamond with most thermal probes.This Diamond Selector II has a metal Alert Buzzer to warn you when touches metal. If you hear the Metal Alert buzzing sound,retouch the probe tip so as to touch only the tested stone.When test other items, it will also emits beepingbeepingbeeping in a high frequency,5timessecond,such as your body,water,and so on. Bare Hands Operation All the tests must be done by your bare hands. If you put on your gloves, the metal alert will not function since a normal moisture levelof your hands is necessary for operation.This diamond tester II can just distinguish diamond and fake diamond,but CAN NOT distinguish Moissanite Real Diamonds Accessory tools Magnifying glass small microscope equipped with 60X LED illumination. Diamond test pen can be used for gems, coins, antiques, stamps, reading, inspection, etc. Diamond tester pen is designed for fast, precise and safe diamond testing. Professional Service If you have any questions about our diamond tester pen, please contact us. We have a professional dedicated to assisting you and help you answer any questions you may have.