Wideband /Fuel Ratio Gauge is Essential for Tuning & Mapping Out the to Fuel Ratios of Your Performance VehicleFor 4.9 LSU wideband sensor and weld-in bung included PN 30-4110,No free sensor calibration required ever.A 2-1/16 inch gauge housing ensures that it will fit in most gauge and can be remotely mounted virtually anywhere52mm (2-1/16inch) gauge housing0-5V analog output 10-20 AFR range onlyName:Wideband /Fuel Ratio GaugeInterchange Part Number: Wide Band Ratio AFR Gauge KitApplicable models: 12V gasoline vehiclesItem:12V Digital Wideband / Fuel GaugeOther Part Number: Includes Oxygen Sensorcolour: as shownMaterial: plastic + metalPackage Contents:1 x -fuel instrument1 x oxygen sensor1 x wiring harness1 x connectorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.