![Salmue Practical Jewelry Gold Testing Tool Touchstone Portable Gold Detecting Stone for Gold Testing Examination Touchstone Jewelry Tool (L) L Color:L 6] NEW HW VERSION: V3](https://cdn.shopify.com/s/files/1/0595/9906/1172/products/B07SHHVQLH.jpg?v=1648589908)
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6] NEW HW VERSION: V3
it is tough and unbreakable to prevent leakage
causing wrist sorenessIf things go on like this
Schmitt trigger action in the CLOCK input circuit provides pulse shaping that allows unlimited clock input pulse rise and fall times
Image3 has shown which terminal will be connected in different position
Salmue Practical Jewelry Gold Testing Tool Touchstone Portable Gold Detecting Stone for Gold Testing Examination Touchstone Jewelry Tool (L) L Color:L 6] NEW HW VERSION: V3Salmue Practical Jewelry Gold Testing Tool Touchstone Portable Gold Detecting Stone for Gold Testing Examination Touchstone Jewelry Tool (L) Features: 1. This touchstone is used to verify the gold content in items. 2. Apply a drop acid test on touchstone, real gold will stay on the touchstone, fake one will be dissolved or oxidized to blue. 3. This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22 24K, silver, and platinum
