... (2) 3L,4L,5L,6L,10L,22L,33L or more. Ultrasonic Cleaner, ultrasonic, cleaner(1) Lowest back-repair rate(2) Safe(3) 3L,4L ... user guide into Local lanuage.(8) good serivce.What is Ultrasonic cleaner:An ultrasonic cleaner, often colloquially referred to as a sonicator, is a ... and the soiling.They are often employed for cleaning of jewellery, lenses and other optical parts, coins, watches, dental and ...