... Dormancy and screen savers FD201B NDT,UT,ndt test,Portable Digital ultrasonic flaw detectorSpecification:DAC,AVG ... ,level p,distance s,amplitude,sz dB,)Automated switch three staff gauge ((Depth d,level p,distance ... , we can work in the scene without test blockBig memory of 300 A graphAutomated gain and ... battery . Power adapter (4A/9V) .Test block V1Test block V2.Test block DAC, ASME etc. we still ...