This unique Gen4 PLX Wideband AFR is designed to help you measure Wideband Air/Fuel Ratio in your car. It utilises the next generation in Bosch Wideband Air/Fuel Ratio sensor technology combined with a fast, accurate and durable PLX device module. The oxygen sensor is meticulously monitored every 2mS (488 times per second) to obtain peak performance, accuracy and reaction time.



  1. 12V power input
  2. 4 prong analog clip
  3. Termination jumper
  4. Serial RX Plug (In)
  5. Serial TX Plug (Out)
  6. Sensor Input Clip

The AFR sensor module includes two analog outputs (Wideband 0-5V, and narrowband 0-1V) for interfacing with 3rd party devices and one digital serial output for interfacing with the DM-6 gauge and other PLX Gauges. The Wideband analog output is ideal for interfacing with aftermarket ECU's and data loggers. The narrowband output is ideal for stock narrowband oxygen sensor replacement where the simulated narrowband analog output is fed into your ECU to make it operate as if the stock narrowband oxygen sensor is still installed while running the PLC Wideband setup. All three outputs can be used simultaneously. Additional features include advanced soft start technology which prolongs the oxygen sensor's life and an aluminium enclosure for durability and reliability. 


Compatible Gauges

  • DM100 OBDII Multigauge
  • DM-6 MultiGauge
  • Kiwi2 iMFD Adapter



  • Dimensions: 52*75*28mm L X W X H
  • Technology: PLX critical response technology, Fast response PID
  • Accuracy: <0.1AFR (Petrol) Wideband, <0.2AFR (Petrol) Narrowband
  • Measurement Range: 10-20 AFR (Petrol), 0.68 - 1.36 lambda (Petrol), 0-100 O2 Sensors health, 0-1000 mS Reaction time, 9-20 Volts
  • Analog Output: Wideband Linear 0-5V, Narrowband 0-1V (Driving Current 20mA)
  • Operating Voltage: 9V-20V
  • Power Consumption: 20 Watts (Max), 13 Watts (Typical)
  • Power Supply Technology: High Efficiency Switching Swift Start Technology
  • Operating temperature: 0-85 Deg Celsius
  • Sensor: One Bosch LSU 4.9
  • Enclosure: Extruded Aluminium


Package Includes

  • SM-AFR main module
  • Bosch LSU 4.9 Wideband Sensor
  • O2 sensor harness 10ft
  • 4ft power wire with 2.1mm connector
  • 4ft Analog wires and connector with 4 terminals
  • 1 serial cable
  • Terminal jumper
  • User manual
Barcode # 897346002177
Brand PLX Devices
Shipping Weight 1.0000kg
Shipping Width 0.120m
Shipping Height 0.050m
Shipping Length 0.200m
Shipping Cubic 0.001200000m3

Be The First To Review This Product!

Help other Fuel Economy Solutions Pty Ltd users shop smarter by writing reviews for products you have purchased.

Write a product review

Product History