Tuning an engine for maximum power previously required long trial-and-error sessions on a dynamometer. With the LM-1, precise AFR measurement allows the user to correctly adjust many variables- including carburetor jetting, fuel injection, turbo fuel curves, etc.- without long and expensive dyno sessions. The meterâ€^TMs digital signal processing technology provides data on exactly how rich or lean an engine is running at any load. The LM-1's self-calibrating circuitry also compensates for changes in temperature, altitude, and sensor condition.

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

The standard LM-1 includes

• bosch wide-band oxygen sensor and cable
• cigarette-lighter adapter
• serial cable for PC connection
• 9V battery
• exhaust bung and plug
• CD and manual.

Note:  The LM-1 ships with a Bosch sensor, however, it can also function with other wide-band sensors, including Honda/NTK and VW sensors.