... ,With basicly DCV,ACV,DCA,ACA,Ω,CAP,Hz,TEMP,diode and Continuity measuring function etc;4,Frequency measuring can rearch 80MHz ... ,0.1%-99.9%pulse duty cycle measuring;16,Set upper limit,lower limit area measuring;17,photoelectricity insulation RS-232 computer ... function;19,AC measuring adopt High accuracy RMS,Widely measuring and AC+DC function,can measuring the accuracy virtual value of ...