Waterproof Mini RPM Meter Dial LCD Display 2 4 Stroke Engine Tach Hour Meter for Racing Motorcycle H7JD

Features:The is used on all petrol-engines with spark plugs.Inductive design, only need to bundle the connecting wire a few turns on the for spark plug to work.Timing range: le than 9999.9 hours; speed range: 15300RPM.LCD liquid crystal display, for DC low-voltage power supply, built-in battery CR2450, DC3.0V.The rev-mode can be set for 2-stroke or 4-stroke oline engines.Specifications:Material:PlasticSize:Approx.7.35x4.67cm/2.89x1.83inchColor:BlackPackage Includes:1 x 1 x WireNote:1.Please allow 1-2cm errors due to manual measurement, e sure that you do not mind before you order.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Thanks for your understandings.