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OBWB8m

The 8-channel wideband controller.

Eight wideband channels (lambda or AFR) with full CAN-bus integration — native O₂ data straight to your ECU, plus Wi-Fi logging to your laptop. Read the full specification, then see how it stacks up against the nearest multi-channel controllers.

Download FirmwareWhere to buy

Specification

Every number, on the table.

Grouped by system. On desktop, all groups are open. On a phone, tap a group to expand it.

Input Voltage9–20 V
Current Draw (controller)500 mA
Current Draw (8 sensors)4–8 A
Power & FuseM8 studs · 25–30 A fuse
Wideband ChannelsUp to 8
Sensor SupportBosch LSU 4.9 / Walker 250-25001
Lambda Range0.2–10.0 (sensor dependent)
Update Rate250 Hz per channel
Accuracy0.01 lambda
AFR Range3–100 (sensor dependent)
Sensor ConnectorSuperseal 1.0
CAN BusCAN 2.0B / CAN-FD, configurable
ECU IntegrationNative Oâ‚‚ data via CAN packets
LoggingCSV to your computer over Wi-Fi
Wi-Fi & Security2.4 GHz AP · WPA2
Dimensions122 × 38 × 178 mm
Weight~440 g (15.5 oz)
EnclosurePBT-GF polymer · IP64
Operating Temp−20 °C to 105 °C
MountingFlanged, M4 (¼")
In the BoxController, sensor harnesses, CAN cable

Authorized dealers

Where to buy the OBWB8m.

Authorized Dealers