30-0300 Wideband O2 Air Fuel Ratio Gauge Kit LSU 4.9 Sensor Controller For Car Engine Tuning Data Logging RS232 CANbus 0258017025

Product DescriptionProduct OverviewThe BOGJFC 30-0300 Wideband AFR Gauge Kit provides fast and accurate air-fuel ratio readings using an LSU 4.9 UEGO sensor combined with a responsive controller gauge. It is suitable for engine tuning and data logging applications.Materials & Specifications(1) Gauge Diameter: 52 mm (2 1/16 inch)(2) Sensor Type: LSU 4.9 UEGO wideband sensor (piezoelectric type)(3) Voltage Compatibility: Up to 16V DC(4) Outputs: 0–5V analog, RS232 serial, CANbus for data logging or daisy-chain connection(5) Display: Large seven-segment center display with selectable 3-digit or 4-digit mode(6) Mounting: Slim gauge depth with ultra-slim cup design and locking harness connectorsCore Components 30-0300 Wideband AFR controller gauge LSU 4.9 UEGO wideband oxygen sensor Wiring harness with locking connectors Mounting cup designed for 52 mm gauge installation Control buttons for display configuration and free-air calibrationApplication Scenarios Aftermarket engine tuning and fuel mapping Dynamometer testing and tuning sessions Performance vehicle data logging and closed-loop control feedback Carbureted or EFI systems using gasoline, ethanol, methanol, or propaneInstallation Steps(1) Mount the gauge in a 52 mm hole and secure it with the supplied mounting cup(2) Install the LSU 4.9 sensor in the stream using an appropriate bung and connect the wiring harness(3) Connect the power supply (12–16V) and optional RS232 or CANbus connections for data logging(4) Use the buttons on the gauge to select the display mode and perform free-air calibration if required(5) Verify the readings while the engine is running and adjust tuning parameters if necessaryQ&A Q: Does the gauge require initial free-air calibration?A: The gauge includes a factory-calibrated resistor. Free-air calibration is optional and can be performed as the sensor ages. Q: What outputs are available for data logging?A: The gauge supports 0–5V analog output, RS232 serial communication, and CANbus for connecting multiple controllers. Q: Can it be used on carbureted engines?A: Yes, it is compatible with both EFI and carbureted applications up to 16V.

• Product Overview：Compact 52mm Wideband AFR Gauge Kit Featuring LSU 4.9 Sensor And Fast Response Controller
• Calibrated Sensor：Includes Calibrated Resistor For Minimal Initial Calibration And Optional Free Air Calibration As Sensor Ages
• Display And Outputs：User Configurable 3- Or 4-Digit Display Showing AFR Lambda Or O2% With 0–5V RS232 And CANbus Outputs For Logging
• Wide Compatibility：Operates Up To 16V For EFI Or Carbureted Applications And Supports Multiple Fuels Including Gasoline Ethanol Methanol
• Easy Installation：Slim 52mm Gauge Depth With Locking Connectors And Slim Cup For Flexible Mounting And Daisy Chain Up To 16 Cylinders