WHP Wideband Oxygen Sensor Kits allow you to use the on-board wideband oxygen sensor controller in either the ECUMaster EMU Black, Pro 8 or Pro 16. 
Accurate information is vital to engine performance and tuning, and the Bosch LSU 4.9 wideband oxygen sensor is a reliable and accurate sensor.

Note: The EMU Black can control either a 4.2 or 4.9 sensor. The EMU Classic can only control a 4.2 sensor.

What's in the box?
Bosch LSU 4.9 Oxygen Sensor
6 foot harness

Downloads:

OXYGEN SENSOR INSTALLATION DIAGRAMS AND TROUBLESHOOTING FOR EMU