... p,distance s,amplitude,sz dB,)4.Automated switch three staff gauge ((Depth d,level p,distance ... value.7.Gate and DAC alarm; Acoustic-Optical alarm;8.RS232 port,communication with pc is easy9.The embeded software ... (mm)Range of scanning (mm): 0~10000Steps: 2.5,5,10,20, 30,40,50,60,70,80,90, ... sending), transmission (transmission probe)Frequency Range (MHz)0.5–15Gain adjustment (dB)0~110Adjusting step: 0.0,0 ...