The Signet 8150 Battery Operated Flow Totalizer is compatible with the Signet 515 and 525 flow sensors. The large digital display indicates flow rate and totalized flow volume simultaneously. Calibration can be easily performed and screen displays can be modified to suit the user's needs. A display averaging feature is included for applications where the flow in the pipe fluctuates. For applications where flow stops and starts due to production needs, a no-flow indicator will display the hours of non-flow.