Note: It is only suitable for 12V gasoline vehicles. There are several of the same series: Tachometer:0~10x1000RPM Booster Gauge PSI: -30~35PSI Vacuum:-1~0Bar Water Temperature Meter: 40~140 Oil Temperature Meter: 50~150 Oil Press Meter: 0~150PSI Voltmeter: 8~18V Air Fuel Ratio Meter: 20:1~10:1 Exhaust Temperature Meter2~12100 Specification: - Diameter: 2/52mm.- LED super white display.- Boost Reading from 0 to 10000 rpm - Power: DC(10-15V) 12V professional.- Condition: 100% New in Box & Good Quality.- This is One Gauge With Two Color (Blue & Red)- The gauge will both show the digital and analog LED.- LCD DIGITAL DISPLAY, LED RED BLUE DUAL DISPLAY- Add a racing look and feel to your ride,High quality and light weight.- Smoke tint lens during the day,Clear and bright LED Display during the night. - Fitment: Fit most of gasoline vehicle, Fit 2"or 52mm Diameter Gauge Pods holder Package Included: 1 x Gauge Wholesale and drop