DRAGON GAUGE 52mm Tachometer Voltmeter Boost Gauge PSI/Bar Water Temp Oil Temp Oil Pressure Car Gauge With Sensor for 12V Car The goods include installation instructions in English. The link includes the gauge pod, you can buy it together. Tachometer:0~8x1000RPM Boost Guage PSI:0~30In.Hg-0~30PSI Boost Guage Bar: -1~2Bar Water Temp Gauge: 40~120 Oil Temp Gauge: 50~150 Oil Press Gauge :0~100PSI Voltmeter: 8~16V Fitment: It is suitable for 12 volt gasoline vehiclestachometer is only suitable for 4/6/8 cylinder cars Note: 1. Manual measurement, please allow 1~3 mm error, thank you. 2. Due to the difference between different displays, the picture may not reflect the actual color of the item. We guarantee that the style is the same as shown in the picture. Please understand, thank you! 3.Professional installation is strongly recommended. Tachometer BoostGuage PSI BoostGuage Bar Water TempGauge Oil Temp Gauge Oil Press Gauge Voltmeter