52mm Smoke Lens Auto Tachometer White LED 0-8000 RPM Meter Car Boost Gauge Bar Psi Vacuum Water Temp Oil Pressure GaugeFit for 12Volts Car:There are several of the same series: 1: Turbo Gauge (Bar) (-1BAR-2.0BAR) / (PSI) (-30 - 30 PSI) 2: Water Temp Gauge (40-120 Celsius) 3: Oil Temp Gauge (50-150 Celsius) 4: Oil Press Gauge:( 0PSI-100PSI) 5: Volt meter (8V-18V) 6: Air fuel ratio Gauge 7: Exhaust gas temp Gauge (2-12 x100 Celsius) 8: Vacuum Gauge (-30-0 In.Hg) 9: Tachometer (0-8x1000)1. Boost gauge barFitment: For all 12V CARS Package include: 1 x Turbo Boost Gauge (-1~2 BAR ) 1 x Users Manual In English2. Boost gauge psiFitment: For all 12V CARS Package include: 1 x Turbo Boost Gauge(-30~30 PSI) 1 x English