They are digital ultrasonic cleaners, which are mainly used for the special utensils cleaning and pretreatment of the analysis sample, crushing, emulsification, dispersion, dissolution, extraction, degas, acceleration of chemical reaction, nanometer preparation in the industries of laboratory, medical decontamination, biochemistry, microbiology, pharmacology, physics, zoology, agriculture, food, pharmaceutical, precision optics instruments, semiconductor material and others. And they are also applied to the high cleanliness of the precision parts cleaning.