Tuning an engine for maximum power previously required long trial-and-errorsessions on a dynamometer. With the LM-1, precise AFR measurement allows theuser to correctly adjust many variables- including carburetor jetting, fuelinjection, turbo fuel curves, etc.- without long and expensive dyno sessions.The meter’s digital signal processing technology provides data on exactly howrich or lean an engine is running at any load. The LM-1’s self-calibratingcircuitry also compensates for changes in temperature, altitude, and sensorcondition.

The instrument can sample and store the air-fuel-ratio and the other sensordata internally in operation for later analysis on a personal computer. At asampling rate of 12 samples/second the instrument can store up to 44 minutesworth of data in non-volatile memory. The data can be downloaded to a personalcomputer using a standard serial port and viewed/analyzed by the includedsoftware or any standard spreadsheet program.

The standard LM-1 includes a Bosch wide-band oxygen sensor and cable,cigarette-lighter adapter, serial cable for PC connection, 9V battery, exhaustbung and plug, CD and manual. The LM-1 ships with a Bosch sensor, however, itcan also function with other wide-band sensors, including Honda/NTK and VWsensors.

Available accessories include auxiliary input cables, alligator-clip powercable, exhaust clamp, analog output cable, and Aux. input expander. Additionalaccessories include a dash-mountable display and AC adapter.

The LM-1 sells for $349.99, including the oxygen sensor (Bosch LSU4.2), 10'sensor cable, 10' power cable, serial PC cable, and software..