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Diamond Tester Professional High Accuracy Gem Selector

Sale priceQAR 69.00
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1. If it is a diamond, the light jumps to the ninth grid or above and makes a beeping sound; if it is testing jade, the light will turn on the fifth or sixth, indicating that the hardness of the jade is reached and there will be no sound.
2. With a metal alarm buzzer, it can warn you when the probe touches metal. When you hear the hum of the metal alarm. Re-contact the probe tip and only touch the gem under test.
3. This thermal conductivity meter drill pen is a precision electronic instrument, the use environment is 5-35 degrees Celsius, the relative humidity of the air is below 80%; the tested product must be clean, dry and at room temperature.


ERK 1010

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