... 4.manual in English 5.easy operation Our company supply high quality MFD800C Ultrasonic Flaw Detector to our guests all over ... are capable of being satisfied by a portable instrument. The quality, portability, durability, and dependability that you have come to ... : Positive half wave, negative half wave, full wave, RFSystem Linearity: Horizontal: +/-0.2% FSW, Vertical: 0.25% FSH, Amplifier Accuracy ...