1.RS232 and USB interface to PC 2.RS232 and USB interface to PC3.With CE certifications 4.Supply OEM/ODM service ... Portable Digital Ultrasonic Thickness GaugeProduct InformationRange of Applications:Able to test any hard material,aluminum,copper, brass,zinc PVC ... other good ultrasonic wave conductor thickness.Product Feature:(1)Applicable to measure the thickness of many materials, e. g. Steel ...