Complete Wideband Air Fuel Ratio kit & Boost Gauge Combo

52mm (2 1/16")

Utilizing the latest Bosch wideband O2 sensor -5 wire heated LSU 4.9 our gauge now has the widest range 10.0:1 to 20.0:1 AFR readings on the planet.

White OLED readout in the center of the gauge for AFR and a bar-graph style LED's around the outside of the gauge to display Boost. Range: -30 vac. ~ 45 PSI Boost


This is a complete kit that includes everything you need:

  • AFR digital Gauge
  • Optionally dim 20% with headlights on (switch wire)
  • Bosch 4.9 5 wire heated O2 sensor
  • Waterproof Boost Sensor
  • Weld in Bung
  • Instructions
  • Wiring harness(Gauge to O2 sensor) 10 feet long
  • Plug and play
  • 0-5 volt output signal for data logging


Brand Prosport
Shipping Weight 1.0000kg
Shipping Width 0.200m
Shipping Height 0.150m
Shipping Length 0.200m
Shipping Cubic 0.006000000m3

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