The Innovate Motorsports DLG-1 Dual Lambda Gauge is two widebands in one! This 52mm (2-1/16″ ) gauge can simultaneously monitor and display data for two Wideband O2 sensors making the the perfect solution for V and Boxer engines with multiple cylinder banks. Includes Innovate MTS serial comms for use with MTS enabled devices to add additional logging channels for analysis with powerful LogWorks PC software.