LM-2 Digital Air/Fuel Ratio Meter User Manual, introduces the use of LM-2, including connecting sensors, configuration menu screens, air/fuel ratio settings, sensor calibration, OBD-II, and analog cables.
The LM-2 is a single or dual channel wideband controller featuring built-in OBD II scan tool capabilities, RPM input, four analog inputs, MTS serial I/O, SD memory card recording, and two analog outputs. It supports Bosch LSU 4.2 and LSU 4.9 sensor types.
The maximum temperature should not exceed 500°C or 900°F.
Calibrate once a year or every 20,000 miles, whichever comes first.
The device allows selection from the Bosch LSU 4.2 or LSU 4.9 sensor.