1、Function: This 12V ultra thin ‑30‑35PSI boost gauge is designed to monitor the boost pressure levels of your car's or truck's turbo or supercharged engine. 2、Easy Installation: 24 red outer LEDs for quick reference to engine parameters. Slim 28.5mm/1.12in overall gauge depth, mount them virtually anywhere. 3、Smarter Interface: 2 buttons on the faceplate deliver programmability for peak or recall, standard or metric center LED readout and sweeping LED needle, and user selectable threshold warnings. 4、Convenient Use and LED Background: Set alarm point and set peak memory with digital display, visual observation. Gauge with red LED + white background. 5、Accurate Display and Stable Performance: Parameter display is accurate and stable, low power consumption, easy to install, stable performance, anti vibration, anti shock. Item Type: Turbo Boost Gauge Kit Material: ABS Background Light: Red LED + White Background Measuring Range: -30-35PSI Working Voltage: 12V Applicable Models: General Purpose Car Modification Fixed Size: Approx. 60mm / 2.4in 1 x Turbo Boost Gauge 1 x Pressure Sensor 1 x Power Wire Harness 1 x Manual