30-0300 Wideband UGEO Air Fuel Ratio Gauge 52mm(2-1/16"), AFR/Lambda Controller Kit with LSU 4.9 Sensor

The UEGO gauge will indicate changes in the air/fuel ratio in real time, which is essential when you aim to perform safer, more powerful and accurate engine tuning.Specifications:52mm(2-1/16") Diameter MountingCompatible with Vehicle/System Voltages up to 16V0-5V Analog OutputSerial RS-232 Output20ms Typical Response8.0:1 to 20.0:1 AFR / 0.55 to 2.00 LambdaConfigurable 3 or 4 Digit Precision Display ModesConfigurable AFR, Lambda or O2% Display ModesFree Air or Resistor Trim Calibration ModesAuto Dimming FeatureGledewen Wideband UEGO Air Fuel Ratio Gauge Kit Includes:1 * UEGO Gauge1 * Wideband Oxygen Sensor1 * PWR/IO Cable1 * Sensor Harness4 * Butt Connectors1 * Silver Nut1 * Installation InstructionUsage Steps1. Connect Harness A to Port A.2. Connect Harness B to Port B.3. Connect the other end of Harness B to the sensor.4. The other end of Harness A has a red wire for the positive terminal and a black wire for the negative terminal.5. Connect to a 12V power supply. The instrument will start working, with a working voltage of 12V.6. The dashboard has a setting and selection button, allowing for 8 function switches.7. In the 4-digit mode, press the left button to switch to the 3-digit mode. Press the select button to confirm, which will change to 3-digit mode. Keep pressing to switch to the initialization mode or air-fuel ratio mode.8. Change to CAN mode for engine combustion ratio calibration and adjustment. This can increase the combustion ratio and improve engine efficiency.

• 【What A Easy Helper!】 Featuring sweeping 24-color-coded LED display and four-digit central readout, the faceplate of wideband gauge is two-sided and reversible. Thanks to it, the afr gauge can switch between 3 display modes of air-fuel-ratio, lambda, oxygen percentage at will, by that means you are able to effectively but quickly monitor your vehicle's conditions.
• 【Core Technology】 To maximize your engine's power while stay safe, an air fuel ratio gauge kit is must-have! The Gledewen AFR gauge helps to identify sensitively every slight fluctuations of air-fuel ratio and report precise and reliable reference to the car engine in real-time, and in particular it matches with LSU4.9 UEGO, ensuring its faster and more precise response(20ms typical).
• 【TWO Calibration Modes】Resistor Trim Mode(rCAL) or Free Air Mode(ACAL)? It is up to you! The supplied UEGO sensor is factory calibrated via a trim resistor, integral to the sensor connector, and rCAL is the recommended calibration mode for best accuracy, for most users, there is no further action or calibration required.
• 【Installation Instructions】Mount the 52mm gauge, connect power and ground wires, and install the LSU 4.9 sensor into the exhaust bung for quick setup.
• 【12-MONTH WARRANTY】If the wideband AFR sensor controller gauge kit fails, stops working or any other problems, you can rely on our service of carefree REPLACEMENT or REFUND