Original: Using Infrared To See If You're Lit Ultrasonic cleaning Ultrasonic cleaners, sometimes mistakenly called supersonic cleaners, are used at frequencies from 20-40 kHz for jewellery, lenses and other optical parts, watches, dental instruments, surgical instruments, diving regulators and industrial parts.
Simplified: Ultrasonic cleaning Ultrasonic cleaners are sometimes mistakenly called supersonic cleaners. They are used at frequencies from 20-40 kHz for jewellery, lenses and other optical parts, watches, dental instruments, surgical instruments and industrial parts.