Note: These meters are stepper motors and need to be powered on to return to zero. It is normal that the pointer does not return to zero.Item Description:52mm boost gauge water temp oil temp oil pressure turbo pressure gauges voltmeter air fuel ratio EGT car meter exhaust gas tempApplication:Color:Black Voltage:DC 12V Diameter:52mm/2 Material:PlasticFeature:1. With digital display, intuitive observation 2. Parameter display precision and stability, low power consumption 3. Easy installation, stable performance, anti vibration and anti bump 4. Fitment: Fit most of 12Volt gasoline vehicle, Fit 2 or 52mm Diameter GaugePackage Included: (As shown in the figure)1 X Gauge or 1 X Gauge Holder Note: The gauge holder needs to be purchased separately, the Gauge does not contain the gauge holder There are several of the same series:1: Turbo Gauge (Bar) (-1BAR-2.0BAR) 2: Water Temp Gauge (40-120 Celsius) 3: Oil Temp Gauge (50-150 Celsius) 4: Oil Press Gauge:( 0-7 BAR) 5: Volt meter (8V-18V) 6: Air fuel ratio Gauge ( 20~10 ) 7: Exhaust temp Gauge (3-13 x100 Celsius) 8: Vacuum Gauge (30~0 in.Hg) 9: Tachometer (0-8x1000)Wholesale and Drop shipping- For wholesale, we will offer the discount or free express shipping which only takes 3-7 days to arrive. - For drop shipping, We could send the goods to your customers directly and won t leave information about us if youd like to.1, Water temp gauge:Fitment: Universal fit for most 12volt Car Package Included: 1 X Water Temp Gauge 1 X Water Temp Sensor(NPT1/8) 1 X English installation instruction2, Turbo boost gauge (bar) :Feature: - Easy to install,easy to use - Reads:-1-2bar for boost - Size:52mm diameter or 2 inch gauge -Power:Professional 12V,IGN MAX 0.3A - Universal fit for most 12volt ,gasoline car Package Included: 1 X Boost Gauge 1 X Boost Sensor3, Oil temp gauge:Specification: - 50-150 celsius - Power:professional 12V,IGN MAX 0.3A - Sensor mounting thread :NPT 1/8 Package Included: 1 X Oil Temp Gauge 1 X Oil Temp Sensor(NPT 1/8) 1 X English Installation Instruction4, Oil pressure gauge ( 0~7 BAR )Package Included: 1 X Oil pressure Gauge 1 X Oil pressure Sensor(NPT 1/8) 1 X English Installation Instruction5, Oil pressure gauge ( 0~100 PSI )Package Included: 1 X Oil pressure Gauge 1 X Oil pressure Sensor(NPT 1/8) 1 X English Installation Instruction6, Vacuum Gauge (30~0 in.Hg)Package Included: 1 X Vacuum Gauge7, Volt meter (8V-18V)Package Included: 1 X Volt meter8, Air fuel ratio Gauge ( 20~10 )Package Included: 1 X Air fuel ratio Gauge9, Exhaust temp Gauge (3-13 x100 Celsius)Package Included: 1 X Exhaust temp Gauge 1 X Sensor