NK-HS2 Inductive Hour Meter for Marine, ATV, Motorcycle, Boat, Dirt Ski Track the Service Life of Your Vehicle-Oil Changes, Valve, Adjustments, Spark Plugs, etc. 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 . Easy Installation-peel & stick, no wiring necessary, or attach with enclosed hardware. No Battery Required-connects to spark plug wire. Works on Any Gas Engine. Learning what to service and when, is the key to a successful preventative maintenance program for your Motorcycle, ATV, PWC, Boat, Snowmobile, Dirt Bike & Generator, provide a quality inductive hour meter in multi color to record a reliability data. NK-HS2 inductive hour meter specifications: Meter size: 5.4 x 3.8 x 1.5cm / 2.1 x 1.5 x 0.6in. Meter weight: 40g. Resolution: 0.1HRS. Rec/Display to: 9999.9 HRS. Operating temperature: Standard -30 to 85 . Waterproof grade: IP-68. Wire length: (Approx.)110cm/43in. NK-HS2 Inductive Hour Meter Details: