Speedhut 2-5/8″ .6-1.2 Lambda Air/Fuel Gauge w/ Warning (R25-WB2-REV)

The Speedhut 2-5/8″ .6-1.2 Lambda Air/Fuel Gauge w/ Warning (R25-WB2-REV) offers precise monitoring of your engine’s air/fuel ratio. This standalone wideband gauge features a built-in controller, eliminating the need for external components. Its clear 2 5/8 inch (68mm) display provides readings in lambda within a range of 0.6 to 1.2. Equipped with a warning light, this gauge allows you to quickly identify potentially harmful lean or rich conditions, helping to protect your engine and optimize performance. The gauge is designed for a standard 2.67″ (68mm) mounting hole, ensuring straightforward installation.

KEY FEATURES AND BENEFITS:

• Precise Air/Fuel Monitoring: Provides accurate lambda readings between 0.6 and 1.2, crucial for engine tuning and diagnostics.
• Standalone Operation: Features an integrated wideband controller, simplifying installation and reducing the need for additional hardware.
• Early Warning System: Includes a built-in warning light to alert you to out-of-range air/fuel ratios, preventing potential engine damage.
• Standard Sizing: The 2 5/8 inch (68mm) gauge size fits common mounting locations.
• Complete Kit: Ships with the necessary LSU 4.9 wideband O2 sensor and a 3 ft power & lighting harness, ensuring you have everything needed for installation.

SPECIFICATIONS:

• Gauge Type: Air/Fuel Gauge
• Gauge Subtype: Air/Fuel Wideband Gauge
• Controller Compatibility: Standalone (Built-in Controller)
• Range: 0.6 – 1.2 Lambda
• Size: 2 5/8 inch
• Hole Size: 2.67 inches (68 mm)
• Warning Light: Yes
• Ships With:
  • LSU 4.9 Wideband O2 Sensor
  • 3 ft Power & Lighting Harness

HOW TO USE:

1. Mount the Gauge: Locate a suitable 2.67″ (68mm) diameter hole in your desired location and securely mount the Speedhut gauge.
2. Install the O2 Sensor: Install the included LSU 4.9 wideband O2 sensor into the exhaust system at a location recommended for accurate readings (typically before the catalytic converter and after the exhaust manifolds converge).
3. Connect the Wiring Harness: Connect the provided 3 ft power & lighting harness to the gauge and to a suitable power source and ground in your vehicle’s electrical system. Refer to the wiring diagram included with the product for specific connections.
4. Connect the O2 Sensor: Connect the LSU 4.9 O2 sensor to the designated connector on the gauge or wiring harness.
5. Start Your Vehicle: Once all connections are secure, start your vehicle. The gauge should power on and begin displaying the real-time lambda value.
6. Observe Readings: Monitor the air/fuel ratio readings to ensure your engine is operating within the optimal range.
7. Heed the Warning Light: If the warning light illuminates, it indicates that the air/fuel ratio has fallen outside the preset safe limits. Investigate the cause promptly.

BENEFITS OF USING THE SPEEDHUT 2-5/8″ .6-1.2 LAMBDA AIR/FUEL GAUGE W/ WARNING (R25-WB2-REV):

• Accurate monitoring of the engine’s air/fuel mixture for optimal performance and fuel efficiency.
• Real-time lambda readings support informed engine tuning adjustments.
• Integrated warning light alerts to dangerous lean or rich conditions before serious issues arise.
• Standalone design simplifies installation without requiring additional hardware.
• Complete package includes wideband O2 sensor and wiring harness for immediate setup.
• Improves engine longevity through proactive monitoring and tuning.

FEATURES:

• Displays real-time lambda values from 0.6 to 1.2.
• Incorporates a wideband controller directly within the gauge unit.
• Includes a visual warning indicator for out-of-range air/fuel ratios.
• Designed to fit a standard 2 5/8″ (68mm) diameter mounting hole.
• Comes complete with an LSU 4.9 wideband oxygen sensor.
• Includes a 3-foot power and illumination wiring harness.
• Provides essential data for engine tuning, diagnostics, and performance optimization.
• Helps prevent potential engine damage caused by improper air/fuel mixtures.
• Offers a clear and easy-to-read display for immediate feedback.