... ml Timer 5 working circles, choose time freely Ultrasonic Cleaner ApplicationsFamily,Office,Beauty salon, Laboratory,Electron workshop ... shop,Clock shop, Watch shop,Mobilephone repair shop,Hospital dentistry,etc. 1. Necklace,Bracelet,Ring,Earring, ... Tightened lid design for effective noise reduction Ultrasonic Cleaner Specification Ultrasonic Frequency 42,000 HzTank MaterialStainless Steel SUS304Tank ...