2-in-1 Diamond and moissanite high-Precision Diamond, Jewelry Tool, Gemstone Testing Pen, Suitable for Diamond and moissanite Testing.

OPERATING INSTRUCTIONS1. Turn unit on with adjustment knob.2. Wait until the wait light goes off and ready light comes on, approximately 10 seconds.3. Hold tester with right hand so that your fingers are resting on the rear metal plate and your other hand must hold the metal holding the gem stone or the metal test plate.4. Lightly touch the probe tip in the center of the gem stone. (Approximately 250mg of pressure) Hold tester perpendicular to the table of the gem for one second.5. If it's a simulation or non -diamond, nothing will happen. 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. If you forget, the tester will remind you to do so in three minutes.9. If the yellow ready light flashes or will not come on, you need to replace the 9V battery alkali batteries are recommended.

• 2-in-1 Test Pen: In addition to testing diamonds, the Diamond Tester Pen can also detect moissanite and other gemstones. 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. It undergoes rigorous testing and quality control to provide you with reliable test results, instilling confidence in your diamond or Moissanite purchases and assessments
• 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