... function 3.Large Tank for Profession Professional Digital Ultrasonic cleaner 1. specially designed for large optical shop ... cleaning2.Great cleaning device for scientific labs, medical and dental clinics, electronic workshops 3.Hobbyists4.Electronics ... Personal care6.Jewelry, watches straps and bands, glasses, dentures, toothbrushes, tablewareSpecifications: 1) Ultrasonic frequency: 42,000Hz 2) ...