Features: 1.High Accuracy: The hour meter's timing mechanism contains a quartz oscillator to ensure a high degree of accuracy, indication range is 99999.9 hours; operating voltage is DC (12?36)V. 2.Multipurpose: Hour meter can be used for any other device where time is used to determine oil change intervals, service requirements or where there is a need to record hours operated. 3.Sturdy Construction: Outboard engine hour meter is made from ABS and metal material, splash resistant, impact proof, not easy to break or crack. 4.Applicable Models: Mechanical hour meter can be used for engines of ships, automobiles, trucks, tractors and other mechanical equipment. 5.Portable and Easy to Use: Professional manufacturing, engine hour meter high performance, strong reliability, compact and lightweight, easy to carry and store.Specification:Item Type: Hour MeterMaterial: ABS + MetalFunction: Used for determining maintenance time, oil change intervals, service requirements, or any other equipment that needs to record hours of operationApplicable Models: Engines of ships, automobiles, trucks, tractors and other mechanical equipmentNote:These meters are not water proof, only splash resistant;The item Without the function of automatically to zero