Waterproof Digital Hour Meter DisplayLCD Portable Engine Hour Meter for Motorcycle/Boat Engines Odometer Hour Meter Features: Brand new and high quality Track the life of your vehicle's oil changers, valve, adjustment, spark plugs etc. Easy to install Peel and stick No batteries required - connect to spark plug wire Works on each gas engine Recording and display up to 9,999.9 hours Hourglass symbol appears and flashes on/off to indicate counting time Automatic rollers over Resolution: 0.1 hours 100% epoxy housing is waterproof, shockproof, stand fire 85 deg; cSpecification: Original Box: Yes Color: Black Blue Green Red Orange Yellow Product Size: 54*35*14mm Package Size: 176*101*15mm Net Weight: 62g Package Weight: 81g Package Contents: 1 x Hour Meter 1 x Wire 2 x Screw