Koso DL-03A Air/Fuel ratio meter & RPM data logger with BOSCH® LSU 4.9 sensor

The Koso DL-03A with BOSCH® LSU 4.9 sensor shows the air-fuel ratio, has an RPM data logger, and can optimize the driving performance thanks to the associated playback ability. A tachometer, digital voltmeter and 5 different LED signal lights are also integrated.

A special feature of the DL-03A is the heated screen, which optimizes the view of the displays in cold weather conditions.

The large digits and the bright background lighting also make it easier to read, and the meter is easy to use, compact, lightweight, and can be mounted on many vehicles such as snowmobiles and UTVs.

• Tachometer
  R: 0 ~ 14,000 RPM
  U: 1 level = 1,000 RPM
• Air/fuel ratio
  R: 9.0 ~ 24.0
• Over LEAN setting
  R: LEAN 14.7 ~ 24
• Over RICH setting
  R: RICH 9.0 ~ 14.7
• Sensor type
  Bosch oxygen sensor: LSV 4.9
• Compatibility
  2 stroke or 4 stroke engines
• ”2 stroke adaptor” BG001855 is
  optional when used on a 2 
  stroke application
• Requires a DC 12 V battery absolutely
  (will not function with our AC/DC
  converter) !
• Records: Number of records:
  50 sessions

• Recording time
  R: 99’59’’99 seconds | TR: approx 3.18 Hr
• Play mode speed
  1 x play / pause
  3 x play / pause
  1/3 x play / pause
  1 x rewind / pause
• Digital volt meter
  R : DC 5 ~ 24 V
  Flashing numbers settable range
  DC 8V to DC 18V
• Heated screen
  Optimized visibility under cold weather
• Backlight brightness
  R: 3 levels
• Indicator lights
  5 red LED warning lights
• Effective temperature
  R:14 ~ 140 °F (‑10 ~ 60 °C)
• Effective voltage
  DC 12 V