Ultrasonic cleaning uses high frequency sound waves above human hearing to agitate in a solution. Cavitation bubbles induced by the agitation act on contaminants adhering to substrates like metals plastics glass and ceramics. The tiny air bubbles bust and shake off contaminants. This action also penetrates blind holes cracks and recesses. The action can thoroughly remove tightly adhering or embedded particles from solid surfaces. Water or other solvents can be used depending on the type of contamination and the work-piece. Contaminants can include dust dirt oil pigments grease oxidation polishing compounds flux agents fingerprints soot wax and mold release agents biological soil like blood and so on. Industrial grade ultrasonic transducer with twice of power and durability vs. S and D series. 1 to 30-minute full range digital timer. 2-color LED display. Heater. Overheating protector. Cooling fan. Medium tank capacity with 2.0 L 2.1 Qt. Degas function. Detachable power cord.