DescriptionBrand Name : ACCESTINGOrigin : Mainland ChinaManufacturer Part Number : NoneNumber Of Cylinders : 4Placement on Vehicle : FrontMaterial Type : Stainless Steel+GlassItem Length : 85mmSpecial Features : RPM TachometerItem Width : 85mmCountry/Region of Manufacture : ChinaItem Height : 85mmInterchange Part Number : NoneItem Weight : 0.25 kgProduct Name : Tachometer GaugeInstallation Dimension : 85 mmIndicating Range : 3000,4000,6000, 7000,8000 , RPM GaugeTachometer Working Voltage : 9~32VBacklight : RedFunction 1 : RPM Tachometer GaugeTachometer fit for : Car ,Boat,RVFeature :1.Tachometer fit for Car /Truck/ Boat /Diesel Generator Engine /Gasoline Engine2. Red Backlight3.Speed Ratio: 1~360 adjustable4.Functions: current tacho/RPM and hour5.Operation mode: LCD display, stepper motor6.Operating Current:100 MAPlease attention we have 5 model tachometer: 3000, 4000 rpm, 6000 rpm, 8000, 7000 rpmIndicating Range: 85MMPackage List:1x Tachometer1x Installation Instruction1* Wireif you need sensor , you need buy it