GlowShift Tinted 7 Series Digital Wideband Air/Fuel Ratio AFR Gauge Kit - Includes Oxygen Sensor, Data Logging Output & Weld-In Bung - Smoked Lens - Blue LED Display - 2-1/16" 52mm 2 1/16th Inch (52mm) Black Face with Magnified Tinted Lens Blue Digital Numeric Display Reads from 10.0 to 20.0 AFR and is Accurate to One Decimal Place with 3 Color LED Ring that Indicates Lean, Rich, and Optimal Air/Fuel Mixture Digital 12 Volt Wideband Contoller Unit with Data Logging Output Wideband Oxygen Sensor with Weld-In Sensor Bung Free Lifetime Technical Support & One Year Limited Warranty 7 Color LED Backlit Tinted Lens Stepper Motor Movement 270 Needle Sweep Polycarbonate Lens Aluminum Trim Ring Wideband Control Box Oxygen Sensor &amp; Bung Power Harnesses Gauge Visor Mounting Hardware Installation Instructions