Features:
Dirt and oil could be removed in a short time by using the strong cavitation of ultrasound.
Time is adjustable among 1 second to 500 hours by simple handle of large timer.
Additional special case for small parts cleaning and drainage for changing of cleaning solution.
Automatic stopwatch to manage working time and maintenance time.
Standard residual-current circuit breaker: used for testing leakage power. And keeping moving of machine and cutting of power switch.