Mirroring the functions of AutoMeter's Street Wideband, the Digital Stepper Motor Wideband provides the most important functions necessary to make sure you're extracting the most power possible, safely. An analog needle display integrates seamlessly with other gauges and easily illustrates rate of change as well as the actual value. Our advanced auto calibration system automatically calibrates your gauge on every startup to assure you of the highest degree of accuracy over the entire lifespan of your sensor (no free air calibration is ever necessary). Designed for gasoline applications, this wideband gauge provides the same degree of accuracy and response as the Pro version, but at a reduced cost. Data logging output is included for one wire or two wire systems. Our specially designed O2 sensor and wiring harness are included for ease of installation.Features: Traditional incandescent lighting illuminates around the perimeter of the dial Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft. wiring harness, 304 stainless steel weld-in bung, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation AutoMeter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up Display range of 8:1 to 18:1 Suitable for use with gasoline powered engines 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system Product Description: 2-5/8" Wideband Air/Fuel Ratio Gauge, Analog, 8:1-18:1 AFR, Sport-CompPit Stop USA offers Auto Meter 2-5/8 Sport-Comp Wideband Air/Fuel Gauge 3579 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Air Fuel Ratio Gauges.