Engine hour meter:used for any 2/4 stroke gasoline engines,such as ATV,motorcycle,marine,boat,lawn mower,generator,snowmobile,chainsaw,UTV,outboard.
Waterproof hour meter:it is completely waterproof IP68,can be used under the water.
Inductive hour meter:Wrap the cable to the engine spark plug wire for more than 5 circles.When engine is on,it flashes the digit and starts to record the hours.
Easy installation,use two screws or double-sided 3M tape to fix.
Battery is not replace,it is sealed in the hour meter.The service life is more than 5 years.