... uper limit 1~5 optionallySquare wave or pulse with 25ms pulse widthTransistor switch output with isolation protection,can absorb 250mA current and ... range,pulse volume exceeds range,disconnect pulse small signalTransistor switch output with isolation protection,can absorb 250mA current and withstanding 35V voltage ... LZB/LZJ(-F)glass tube flow meter,LZB-W(B)micro type glass tube flow meters,G.R.F10/20/ ...