(1)Track the Service Life of Your Vehicle - oil changes, valve, adjustments, spark plugs, etc...

(2)Easy Installation - peel & stick, no wiring necessary, or attach with enclosed hardware.

(3)No Battery Required - connects to spark plug wire.

(4)Works on Any Gas Engine.

(5)Records and Displays to 9,999.9 hours. Stand-by time up to over 20,000 hours

(6)Hour glass symbol appears and flashes on/off to indicate counting time.

(7)Automatic Roll over.

(8)Resolution 0.1 hour.

(9)100% epoxy encapsulated casing resists water. Shock, stand fire of 85 Celsius degree

(10)Warranty one year.