The Bosch 4.9LSU sensor, which gives PLX Wideband controller their speed and accuracy, is laboratory calibrated at the factory and never requires free air calibration when used with an PLX controller.The Bosch LSU 4.9 Wideband Sensor has a quicker "light off" time and requires less amperage to drive the heater element in the sensor. Wire Length:50cm. No warranty for the Lambda Sensor**
