tach/hour meter for any gasoline engine

Tach/hour meter SY-N60 for motorcycle, ATV, Snowmobile, Boat, Generator,

Features
No battery required-connects to spark plug wire.
works on any gasoline engine.
indicated operation in RPMS and hours.
Easy installation ,no power or ground required.
Maximum RPMs 99999, Maximum Hours:99999
Easy to set 1,2,4, cycle engine for manual
waterproof