Resettable hour/job timer Recalls MAX RPM, a great feature for troubleshooting or tuning Waterproof (IP65 rating) 2 adjustable maintenance reminders (service1 from 5-50 hours. service2 from 10-250 hours) Easy to install, Reliable and simple to operate Fast 1 second refresh rate 5' 6" length on the main lead wire NOTE: This tach will NOT work on ignition coils that are built into the spark plug cap. This one model can be used on almost any 2 or 4-stroke gasoline engine with one to eight cylinders which makes it great for: Jetskis and Wave Runners Outboards & inboards Lawn and garden Motorcycles Snowmobiles .
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