PLX Devices SM-AFR wideband Air/Fuel mixture sensor module generation 3 + used leads

The SM-AFR Gen3 is a wideband oxygen sensor controller designed for precision tuning of air-fuel ratios. It combines an accurate, fast-response wideband AFR (air to fuel ratio) controller with a Bosch LSU4.2 wideband oxygen sensor.

• PCB version:
  • SM-AFR V4.2
• Fuel Compatibility:
  • Gasoline
  • Diesel
  • Ethanol
  • Methanol
  • E85
  • LPG
  • CNG
• Intelligent Health Monitoring:
  • Oxygen sensor is meticulously monitored every 2ms (488 times per second) to obtain peak performance, accuracy and reaction time. The Gen 3 also adds three new parameters for monitoring:
    • A sensor life displayed from 0...100%
    • Oxygen sensor reaction time displayed from 10...1000mS
    • A sensor voltage displayed from 9...20V
• Analog Outputs (These outputs allow interfacing with third-party devices):
  • 1x Wideband 0...5V
  • 1x Narrowband 0...1V
• Digital Serial Output:
  • Includes a digital serial output for seamless integration with the DM-6 touch-screen MultiGauge and other Multi Gauges.
• Digital output:
  • Serial input connection
• Soft Start Technology:
  • The Gen3 incorporates advanced soft start technology, extending the oxygen sensor’s lifespan.
• Plug and Play Installation:
  • No manual calibration required. Simply mount the sensor, connect the wire harness, and apply power.
• Compatible Lambda sensor (O2 sensor):
  • Bosch LSU 4.2 Sensor
• Operating voltage:
  • 9...18VDC
• Max power consumption:
  • 10W
• Compatible gauge unit:
  • DM-6 multi gauge
    • Requires 3,3VDC (from this unit)
    • Connects to serial interface's TX port
  • DIY guy tinkers some own serial connection doohickey
  • Possibly some other factory made solutions (gauges, bluetooth tranceivers, data loggers)