Digital Tach And Hour Meter / SenDec 806-100Pack Size:1Briggs & Stratton 19598Green Line 78701, J. Thomas 806-100, Laser L6062, Laser 97397, Mow More SENDEC, NHC 288-5949, Prime Line 7-05798, Rotary 9359Universal All single cylinder and most twin cylinder 4-cycle gasoline engines Flashing will stop with continued use, SENDEC 806-100/CODE 1032, Alerts you to lube and change oil by flashing;