The Haltech Dual Channel Wideband (HDWC) is lightweight, compact and easy to install stand alone wideband sensor controller capable of controlling 2 individual sensors. The HDWC uses the very popular Bosch LSU4.2 5 wire oxygen sensor which plugs into the controller using a pre-terminated Deutch connector.
The HDWC has 2 x 0-5v outputs which can be integrated with your Haltech Platinum series ECU to display the engines Air / Fuel ratio on your laptop and perform tuning adjustments and/or closed loop o2 correction – This feature improves fuel economy and engine emissions output.
• Controls 2 sensors with just one controller.
• Produces reliable and consistent readings
• Uses default 02 sensor calibrations available in your Haltech ECU Manager software ( 0-5v, 10-20AFR)
• Reads Air / Fuel ratio from 10.0:1 – 20.0:1 in AFR or 0.68 – 1.36 Lambda
• Dual Channel makes the controller perfect for Dual bank engines (V or Boxer configuration engines)


