OEM Part No: GDI Sendec LCD Hour meter, Rev counter, Tachometer, Service Reminder. Flash Alert alerts you to CHG OIL every 25 hours. For 1 and 2 Cylinder Gasoline engines. Easy installation with patented one wire hookup. Simply wrap the pick-up wire around the spark plug wire. 100% Environmentally sealed. Self Powered. Mount using screws, velcro or double sided tape. (Global Digital Instruments (GDI) is formerly SenDEC Products Group) Made in USA. Digital Tach and Hour Meter Extend power equipment life Flash alert For Petrol engines No battery required Reset button control SENDEC 806-100/CODE 1032 BRIGGS & STRATTON PARTS: 19598 BYNORM PARTS: 210-028 Fits Model - Universal: All single cylinder and most twin cylinder 4-cycle gasoline engines Height Length Width 15.88mm 53.85mm 35.56mm