AEM Wideband Sensor

A great wideband gauge for naturally aspirated builds!

Price: $199.00


  • Multiple dial and bezel color plates included
  • Bosch sensor included
  • Accurate to 0.1 AFR
  • Reads in AFR or Lambda via a switch in back of gauge housing
  • 24 Color LED display lights provide immediate reference to engine’s AFR
  • Integrated digital display reveals AFR in real time
  • User-programmable 0-5v analog output for dataloggers


We use this wideband on all our personal and project cars. This UEGO sensor accurately monitors Air/Fuel ratios (AFR) during the tuning process to prevent a lean fuel mixture, which could lead to engine damage. AEM has combined its single-channel wideband UEGO controller and gauge display into one unit, uniting unsurpassed AFR accuracy and control with an easy-to-read interface. AEM’s Gauge-Type Wideband UEGO Controller features a digital LED display and sweeping LED “needle” that changes colors as AFR changes from rich to lean.

We love the fact that the gauge displays BOTH a digital number and a "needle" type movement. This way, it is easy to see out of the corner of your eye what is going on which helps keep you focused on the track!