Track the Service Life of Your engine - oil changes, valve, adjustments, spark plugs, etc... · Easy Installation - peel & stick, no wiring necessary, or attach with enclosed hardware. · No Battery Required - connects to spark plug wire. · Works on Any Gasoline Engine. · Records and Displays to 9,999.9 hours. Stand-by time up to over 20,000 hours · Hour glass symbol appears and flashes on/off to indicate counting time. · Automatic Roll over. · Resolution 0.1 hour. · 100% epoxy encapsulated casing resists water. Shock, stand fire of 85 Celsius degree
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