2-in-1 Diamond & Moissanite Tester Pen, Professional Barbados

If it's a diamond, the buzzer will ring and the green light(diamond) will come on for about 6 seconds. If it's a moissanite, the tone will change and the light will switch from green to blue(moissanite) within 1/2 second. 6. After the buzzer is first heard, you must continue to test for one second before you take the probe off the gem stone, this is because the test for diamond is done first. The test for moissanite is completed 1/2 second later. 7. If the tone changes while you are removing the probe, you must retest because you may have contacted the metal findings while removing the probe. 8. To save thebattery, turn off the unit after testing. It offers various testing modes and functionalities to cater to your testing needs for different types of jewelry High Accuracy: Our Professional Diamond&Moissanite Tester Pen is designed to help you quickly determine diamond and moissanite from other fake stones. Nice choice for retail jewelers, pawn brokers and chain stores Simple Operation: The Diamond Tester Pen is easy to use,just lightly touch the pen tip to the surface of the jewelry, and it will provide test results within seconds. The diamond light light up indicates that the product is a real diamond, and the Moissanite light light up indicates that the product is moissanite Reliable Assurance: This diamond & moissanite selector tester designed for quick, precise, and safe diamond testing. Portable Desgin: It's compact-sized design, easy to carry and use. Low battery consumption(includes rechargeable batteries). NOTE: Our products are battery powered, with batteries, no charging cable