GF Signets 8150 is a Battery Powered Flow Totaliser with Choice of Field, Panel or Integral Sensor Mounting. A flow totaliser for use with the GF Signet 515 and 525 paddle wheel flow sensors. The large digital display indicates flow rate and totalised flow volume simultaneously. The Signet 8150 includes three totalisers, 2 resettable and 1 permanent, user selectable.