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<p>Technical characteristics:<br> 1. Pocket, portable and hand-held.<br> 2. Non-destructive testing, simple and accurate operation.<br> 3. Power supply: DC9V battery.<br> 4. Dimensions: 190*60*35MM Weight: about 140g<br><br><br> Operation method:<br> 1. Turn on the power, the power indicator lights up, the instrument starts to warm up, and the instrument can be used in a few seconds.<br> 2. Put the bare drill to be tested into the appropriate recessed hole of the support tray, with the table top facing up. Those who have been mounted do not need to put it in the tray hole, but can hold it by hand.<br> 3. Brighten several light-emitting diodes according to the weight of the real or fake diamond to be measured and the temperature of the measuring place.<br> 4. Remove the probe sheath, hold the instrument and touch the conductive plate of the back cover of the instrument with your right index finger; make the probe lightly touch the table surface of the measured real and fake diamonds vertically.<br> 5. Pay attention to the reflection of the instrument carefully. If the remaining yellow LEDs light up, when there are 9 diodes, and beeps along with it, it means that the person under test is a real diamond. Contrary to this, if there are less than 9 lights up and the instrument does not emit a sharp beep, it means a fake diamond or a counterfeit product.<br> <br> Repair and maintenance:<br> 1. The probe of the instrument is very sensitive and must be protected with special care, and a protective cover should be put on when not in use.<br> 2. When the ready indicator light is very dark, it means that the battery will be exhausted, and the battery should be replaced in time.<br> 3. If the instrument will not be used for a long time, please take out the battery.<br> 4. For accurate detection, it is recommended to calibrate once a year.</p>
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