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CNRAQR Air/Fuel Ratio AFR Gauge Wideband Kit with New Upgrade Original LSU 4.9 O2 Sensor UEGO AFR Digital LED Display Gauge O2 Oxygen Sensor 52mm (2-1/16”) for 12V/16V Car — Open-Box
Brand: CNRAQR
Condition: Used
$5395
Updated: 15 hours 28 mins ago
Description
NEW UPGRADE ORIGINAL LSU 4.9 SENSOR FOR SUPERIOR ACCURACY: Equipped with a top-tier original factory style LSU 4.9 wideband oxygen sensor, renowned for its laboratory-grade precision, extended lifespan, and exceptional stability. It withstands extreme exhaust temperatures to deliver fast, reliable air/fuel ratio (AFR) data critical for professional tuning
UNIVERSAL 52MM VEHICLE COMPATIBILITY: Our digital AFR gauge comes in a standard 52mm (2-1/16 inch) housing for flexible mounting in most instrument pods. Compatible with vehicle/system voltages up to 16V, it offers a true plug-and-play wideband oxygen sensor solution for virtually any 12V gasoline engine, from classic cars to modern performance builds
REAL-TIME UEGO MONITORING & ALERTS: This wideband UEGO gauge delivers instant, clear digital readouts of your AFR/Lambda value. Programmable visual warning alarms instantly notify you of dangerous lean or rich conditions, making it a critical monitoring tool for carburetor adjustment, fuel injection tuning, and engine protection
ULTRA-THIN DESIGN & COMPLETE KIT: The ultra-thin round gauge profile enables seamless, low-profile dashboard installation. This all-in-one kit includes 1×wideband air/fuel ratio gauge, 1×LSU4.9 oxygen sensor,1×oxygen sensor wire,1×oxygen sensor bung, and all necessary wiring for a complete and professional wideband oxygen sensor system installation
DEDICATED STANDALONE OPERATION: Designed as a dedicated monitoring gauge, it provides precise, real-time exhaust gas measurement for observation and tuning purposes. Notice: It functions as an accurate AFR gauge display and cannot be connected to a computer for analog output or data logging
Specification
Gauge Size: 52mm (2-1/16") Diameter, Ultra-Thin Round Housing
Display: Bright Digital LED
Core Sensor: Original grade LSU 4.9 Wideband Oxygen Sensor (O2 Sensor)
Operating Voltage: 12V, compatible with systems up to 16V
Output: Display Only (No analog/logging output)
Advantages
1. Complete Ready-to-Install Kit: Includes gauge, LSU 4.9 sensor, controller box, wiring harness, sensor bung & plug for a professional wideband system installation.
2. Superior Original grade LSU 4.9 Sensor Accuracy: Features the latest wideband O2 sensor technology for fast, stable, and highly accurate AFR readings in extreme exhaust conditions.
3. Universal 52mm Vehicle Compatibility: Standard 2-1/16” size fits most gauge pods; works with 12V-16V systems for classic & modern gasoline engines.
4. Real-Time Monitoring with Visual Alarms: Digital display provides instant feedback; programmable warning lights protect against damaging lean/rich conditions.
5. Standalone Controller Box Design: Separate controller ensures reliable signal processing and allows for flexible, discreet mounting away from heat and dash.
6. Ultra-Thin Professional Aesthetics: Low-profile gauge housing enables a sleek, flush-mounted look for a clean and integrated cockpit installation.
Package Includes
1 x 52mm Digital AFR Gauge
1 x LSU 4.9 Oxygen Sensor
1 x Pre-Assembled Main Wiring Harness
1 x Weld-On Oxygen Sensor Bung with Plug
Mounting Hardware & User Guide
Gauge Size: 52mm (2-1/16") Diameter, Ultra-Thin Round Housing
Display: Bright Digital LED
Core Sensor: Original grade LSU 4.9 Wideband Oxygen Sensor (O2 Sensor)
Operating Voltage: 12V, compatible with systems up to 16V
Output: Display Only (No analog/logging output)
Advantages
1. Complete Ready-to-Install Kit: Includes gauge, LSU 4.9 sensor, controller box, wiring harness, sensor bung & plug for a professional wideband system installation.
2. Superior Original grade LSU 4.9 Sensor Accuracy: Features the latest wideband O2 sensor technology for fast, stable, and highly accurate AFR readings in extreme exhaust conditions.
3. Universal 52mm Vehicle Compatibility: Standard 2-1/16” size fits most gauge pods; works with 12V-16V systems for classic & modern gasoline engines.
4. Real-Time Monitoring with Visual Alarms: Digital display provides instant feedback; programmable warning lights protect against damaging lean/rich conditions.
5. Standalone Controller Box Design: Separate controller ensures reliable signal processing and allows for flexible, discreet mounting away from heat and dash.
6. Ultra-Thin Professional Aesthetics: Low-profile gauge housing enables a sleek, flush-mounted look for a clean and integrated cockpit installation.
Package Includes
1 x 52mm Digital AFR Gauge
1 x LSU 4.9 Oxygen Sensor
1 x Pre-Assembled Main Wiring Harness
1 x Weld-On Oxygen Sensor Bung with Plug
Mounting Hardware & User Guide
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Product Details
- SKU:
- awhd-us-b0g7gb2jrc
- Model:
- AFR-Y-CB-03-1
- Country:
- US
- ASIN:
- B0G7GB2JRC
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
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