Taking the core features from AutoMeter's Pro Wideband, the Street Wideband provides the most important functions necessary to make sure you're extracting the most power possible, safely. 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: Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft. wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning Suitable for use with gasoline powered engines Digital segment display and LED radial bar graph display 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system Product Description: 2-1/16" Wideband Street Air/Fuel Ratio Gauge, 10:1-17:1 AFR, Ultra-LitePit Stop USA offers Auto Meter Ultra-Lite Wide Band Air / Fuel Ratio Kit - 2-1/16 in. 4379 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Digital Air / Fuel Ratio Gauges.