Inductive Tachometer Track Oil Change Hour Meter Digital Tach Hour Meter for 2 or 4 stroke gasoline engine maintenance, maintenance timing and RPM detection, Thi sis a great way to keep track of your hours between Services ! Great Value and Easy to Install !Cool gadget
Large buttons can be easily operated while wearing gloves,0.39 inch large font accurately reading RPM and time. works really well once you get it to read accurately.
The maintenance time record will let you pay attention to the state of the engine, so that you can repair and replace the engine oil and air filter to protect it and extend its service life.
This is a very simple and easy way to check idle speed on any engine with a spark plug! Install it on the hood or where you need it, ground it and route it around the plug wire, then display the RPM on the screen.Bold in the cable, not easily broken when you turn
Made it easy to know what I was doing while adjusting engine rpm after carburetor replacement.No need to guess
Induction line length：68.8（In）(It can be extended, the signal is stable in 390(In). It can be cut short and does not affect signal reception, but you need to do it yourself)

The engine stops showing the total working time TOT 0.0 and displays the current RPM while working.
Display TOT 0.0 ,total running time, 0.0-99999H, can not be reset.
Displays JOB 0.0, single run time, resettable
Display 1P1R, Engine type setting,can be set
3 interfaces, 3 functions, only for the excellent you
Suitable for engine type 2 stroke (1 / 2 / 3 cylinders) and 4 strokes (1 /2 / 4 / 6 /8 /12/16 cylinders )
It is the ideal rev counter for motorcycle, ATV, PWC, ,Paramotors, Microlights, Marine Engines - Inboards and Outboard