Seeing the exact fuel pressure on your vehicle can mean the difference between extracting the most performance safely and expensive failures. AutoMeter?s Digital Stepper Motor Fuel Pressure Gauge will precisely measure your exact fuel pressure at levels of accuracy previously unheard of even in professional gauges. Designed for fuel injected or carbureted applications, our advanced 1/8? NPT solid state pressure transducer provides the best possible measurements on the market with unparalleled resistance to vibration and heat. Don?t take chances with your investment; a precise fuel pressure gauge could be the cheapest insurance you?ve ever bought. A direct plug in wiring harness is included for ease of installation. 7 color user-selectable background illuminations (red, blue, green, white, yellow, orange, and violet) with adjustable brightness for day and night - with independent dimming of dial and pointer. SPEK-PRO