... Flaw Detector P/N: YUT2820 YUT2820 Portable Digital Ultrasonic Flaw Detector Functions1. Wave peak memory: real time envelopes ... S, horizontal X, depth Y, and wave height H.7. Digital Reject: 0-80%, increase by 1%, unaffecting the linearity and ... .4kg without batteriesWorking temperature: 14°F to 122°F YUT2820 Portable Digital Ultrasonic Flaw Detector