Wideband Lambda 4.9 Motorsport Precision, performance and reliabilityall in one package. Wideband Lambda 4.9 Motorsport is developed for those who demand uncompromising accuracy and operational safety, both on the street and on the track. With support for both free-air calibration and resistor calibration, installation is reliableand you quickly get an accurate reading you can trust, every time. This is the wideband lambda gauge for tuners, motorsport builders and serious enthusiasts who want full control over the fuel mixture. Features: Open-air or resistor calibration Ability to recalibrate after sensor aging or condition changes. Also supports accurate calibration using built-in sensor resistor. 61mm (2.4") outer diameter 22mm Depth Display is 22mm deep. 37mm deep including mounting screws. Measurement range From 8.0:1 to 20.0:1 AFR 0.55 to 2.00 Lambda Configurable 3- or 4-digit display mode Example: 12.5 or 12.50 Lambda, AFR, O2 % display modes Select the value shown on the d