Description
The Speedhut 2-1/16″ PLX Air/Fuel 10-18 Gauge w/ Warning (R2-WB8-REV) is an essential instrument for monitoring your engine’s combustion efficiency. Designed for accuracy and ease of use, this analog gauge provides real-time feedback on your air/fuel ratio, helping you optimize performance and protect your engine. Its compatibility with PLX Devices controllers ensures reliable wideband readings.
KEY FEATURES AND BENEFITS:
- Wideband Monitoring: Accurately displays air/fuel ratios across a broad range from 10:1 to 18:1, crucial for tuning and engine diagnostics.
- PLX Devices Compatibility: Specifically engineered to function seamlessly with PLX Devices wideband controllers for precise readings.
- Integrated Warning Light: Features a settable warning light that alerts you to potentially damaging lean or rich conditions, allowing for prompt corrective action.
- Standard Size: The 2-1/16 inch (52mm) form factor ensures easy integration into most standard gauge pods and mounting solutions.
- Complete Wiring Harnesses: Ships with essential wiring harnesses, including power and lighting, air/fuel wideband throttle position, and an 8-foot tachometer harness, simplifying the installation process for LED-lit gauges.
SPECIFICATIONS:
- Gauge Type: Air/Fuel
- Gauge Subtype: Air/Fuel Wideband
- Controller Compatibility: PLX Devices
- Range: 10-18
- Size: 2 1/16 inch (52mm)
- Hole Size: 2.062 inches (52mm)
- Warning Light: Yes
- Input Voltage: 0 volts to 4 volts
- Ships With:
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
- AF/WB Throttle Position Harness (LED Lite Gauges)
- 8 ft Tachometer Harness – for LED Lit Gauges (1 Wire 2 Pin Connector)
HOW TO USE:
- Mount the Gauge: Install the Speedhut gauge into a 2.062″ (52mm) diameter opening in your desired location using the provided spin-lock ring.
- Connect to PLX Controller: Ensure the gauge is properly wired to a compatible PLX Devices wideband controller (sold separately). Refer to the PLX controller’s instructions for wiring details.
- Connect Power and Lighting: Use the included 3 ft Power & Lighting Harness to connect the gauge to a suitable power source and illumination circuit in your vehicle.
- Connect Additional Harnesses (if applicable): Connect the AF/WB Throttle Position Harness and/or the 8 ft Tachometer Harness as needed for your specific setup and desired functionality with other components.
- Set Warning Light (Optional): If desired, configure the warning light to activate at specific air/fuel ratio thresholds according to the gauge’s instructions.
- Monitor Readings: Once powered and connected, the gauge will display the real-time air/fuel ratio as reported by the PLX wideband controller.
BENEFITS OF USING THE SPEEDHUT 2-1/16″ PLX AIR/FUEL 10-18 GAUGE W/ WARNING (R2-WB8-REV):
- Optimized Engine Performance: By ensuring the correct air-to-fuel ratio for various driving conditions, the gauge helps you achieve optimal engine performance.
- Improved Fuel Efficiency: Monitoring the air-fuel ratio helps prevent running too rich or lean, which can lead to better fuel economy.
- Enhanced Engine Longevity: Detecting and correcting improper AFRs can prevent potential engine damage caused by excessively lean or rich conditions.
- Early Problem Detection: The warning light feature allows for immediate identification of AFR issues, enabling prompt corrective action.
- Seamless Integration: Designed specifically for PLX Devices systems, ensuring reliable and accurate data without complex configurations.
FEATURES:
- Provides a clear and immediate analog display of the air/fuel ratio.
- Specifically engineered for reliable communication with PLX Devices wideband controllers.
- Offers a customizable visual alert for out-of-range air/fuel mixtures.
- Designed with a standard 52mm (2-1/16″) size for versatile mounting options.
- Includes essential wiring for power, illumination, and potential integration with other vehicle systems.
- Compact and easy-to-install design.






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