The LM-2 combines an air/fuel ratio meter, a full-function 32-channel datalogger, and powerful software to deliver a complete tuning workshop for less than the cost of one dyno day. Whether you have a piggy-back fuel controller, race carb, aftermarket ECU, ODB-II tuning software, or a flash/chip programmer, an LM-2 is the tool you need to dial in maximum HP. The meters award-winning digital signal processing technology provides data on exactly how rich or lean an engine is running at any load. The LM-2s self-calibrating circuitry also compensates for changes in temperature, altitude, and sensor condition. Patented DirectDigitalwideband sensor control, 100% digital wideband air/fuel ratio technology! Wideband O2 Compatible with ALL fuel types Single or Dual Channel A/F Version Available OBD-II Scan tool- read/clear DTCs and log up to 16 channels of CAN OBD-II Data Log directly to SD card Playback log data on screen and/or with powerful LogWorks software Large high-contrast graphics