Apparatus for cleaning, treatment and/or sanitization of parts including medical and laboratory parts and equipment; ultrasonic cleaning apparatus, ultrasonic degreasers, ultrasonic parts cleaners, ultrasonic pre-sterilisers, control and testing apparatus and systems for use with ultrasonic cleaning equipment including data collection and analysis apparatus; cleaning and de-contamination equipment using ultrasonic technology, parts and accessories therefor; benchtop ultrasonic cleaners