Product  for :All Gasoline Engine,Marine,Motorcycle,Snowmobil,ATV,Generators

1 No Battery Required-connects to spark plug wire.

2 Works on any gasoline engine.

3 Indicates operation in RPMs and hours.

4 Easy Installation no power or ground required.

5 Maximum RPMs 99999, Maximum Hours:99999

6 Easy to set 1, 2, 4, cycle engine for manual

7 MAX RPM can be show,MAX RPM can be reset

8  Waterproof , CE certificated