Ultrasonic Testing The Sonotec range of Ultrasonic testing handheld devices is used for:detect and classify high pressure leaks in compressed air, gas and vacuum systems in factories and reduce your energy costs,find electrical partial discharges (PD) and insulation damage and increase your operational safety,grease or lubrication checker and verification. Dont over grease!monitor bearing condition of your machines,do tightness checks to identify leaks in windows, doors, vehicles, components and containers,steam trap testing with calculations to prevent and quantify steam loss