The new MTX-L PLUS Advanced Digital Wideband Air/Fuel Ratio Gauge - Supersedes INN3844 features their patented Direct Digital technology and all-new Advanced Sensor Control which receives feedback from the sensor more frequently and optimizes heater control. The combination of these technologies makes the MTX-L PLUS their fastest, most durable and accurate air/fuel ratio gauge ever! Key features: ENHANCED Heater Control for superior sensor performance in forced induction and other high performance applications. FASTER Analog Output Speed helps ensure that your ECU sees changes in air/fuel ratio as they happen. FASTER Sensor Frequency for faster O2 sensor feedback. Large digital readout and programmable Digtal Needle provides the functionality of a needle gauge with the pinpoint accuracy of a digital display in AFR or Lambda. Bosch LSU 4.9 wideband O2 sensor, Patented 100% digital wideband air/fuel ratio technology! Ability to calibrate O2 sensor for maximum accuracy.. Wideband O2 compatible with several fuel types. Innovate MTS serial in/out (for use with MTS enabled devices to add additional logging channels). Datalog using powerful LogWorks software on your PC. Kit includes: Gauge, Silver Bezel, Black Bezel, White Faceplate, Black Faceplate, LSU 4.9 Wideband O2 Sensor, 8 Ft. Sensor Cable (Overall length 10 ft.), 1in Exhaust Bung, Program Cable, and Manual.