... Timer 5 working circles, choose time freely Ultrasonic Cleaner ApplicationsFamily,Office,Beauty salon, Laboratory,Electron workshop, Glasses shop ... Car and Motorcycle,Golf Appliance.5. Lab Tools, Instrument and Fitting.6. Metal dishware, feeding bottle and ... Tightened lid design for effective noise reduction Ultrasonic Cleaner Specification Ultrasonic Frequency 42,000 HzTank MaterialStainless Steel ...