Prosport Wideband Air/Fuel Ratio w/Sensor Digital Display-52mm

Wideband Air Fuel Ratio Gauge 52mm (2 1/16") 0-5 volt output signal for data logging Utilizing the latest Bosch wideband O2 sensor -5 wire heated LSU 4.9 (Prosport Inc. is the only one in the USA to use them) our gauge now has the widest range 10.0:1 to 20.0:1 AFR readings on the planet. Featuring Blue LCD readout in the center of the gauge and a bar-graph style LED's around the outside of the gauge that change from green(Rich) to Yellow(Optimal) to Red(Lean) for immediate reference to AFR. This is a complete kit that includes everything you need: AFR digital Gauge Bosch 4.9 5 wire heated O2 sensor, Weld in Bung, Instructions, Wiring harness(Gauge to O2 sensor,) Plug and play Decals, Visor/hood, 0-5 volt data signal for data logging