... particular broad band feature excellent matches with low or high frequency probes, satisfies various inspecting demands, attains a ... -Envelope function: record echo variety track-Automatic gain control function: automatic gain height can be adjusted by operator, quickly ... 0/6.0dBRectificationPositive, Negative, Dual, RFLCD display5.7" high brightness TFT LCD, 640×480 pixelsMeasurement modeFlank or echo ...