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Feature
Applications for all 2-Stroke or 4-Stroke gas powered enginesIt will show both engine RPM and hours of operation,Read up to 99,999 RPM
Easy to install, instructions & user manual included,Programmable maintenance interval setting
Replaceable internal battery rated for 35,000 hour of operation
Can reset total hours and maintenance time,Wrap first wire around your spark plug cable, connect second wire anywhere on the engine or frame