... -line measurement of calibration and inspection. Has high accuracy, consistency is good, battery-powered, simple operation and easy ... instantaneous flow, velocity,, cumulative flow, signal status working hours and so on .TransducersModel M1 for standard, other 3 ... batteries. When fully recharged it will last over 10 hours of operation. 100V-240VAC for the chargerHousing MaterialABSSizeSmall size 220× ...