This professional ultrasonic cleaner (CD-4820) built with high frequency vibration technology which stimulates the transducer and generates 42,000 Hz of ultrasonic wave. You can just simply clean the item with plain water and you will see the dirt being separated off into water in the end.
What can not be cleaned?
1 * Digital Ultrasonic Cleaner
1 * Power Cord
1 * Manual
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