Add valuable data logging capability to your Power Grid with the addition of the plug-n-play Wide Band O2 Module. Aside from providing O2 data to your Grid, the module also provides a 0-5v output to drive an air/fuel ratio gauge or provide a signal to other data loggers. Multiple modules and sensors can be connected to a single Power Grid setup if desired. The completely sealed unit uses a Bosch 4.9 oxygen sensor, and is easy to set up and no free air calibration is required.