Upgrade your ride with the 52mm Air Fuel Ratio Gauge, designed to give you precise, real-time AFR readings with its digital LED display and high-quality narrowband O2 oxygen sensor (0258006028). Perfect for racing enthusiasts and tuning experts, this gauge is engineered for accuracy and performance, ensuring your engine runs efficiently and safely. Ideal for gasoline vehicles, this gauge is a must-have for any performance upgrade.
Key Benefits
High-Precision AFR Monitoring – Narrowband O2 sensor delivers accurate 0–1V signal output for dependable air/fuel ratio measurements.
Compact & Stylish – 52mm smoked gauge with LED display blends seamlessly with your car’s dashboard for a sleek, modern look.
Performance Insights – Monitor AFR in real time to prevent engine damage, improve fuel efficiency, and optimize performance.
Easy Installation – Comes with gauge, sensor, and manual (professional installation recommended).
Wide Compatibility – Suitable for Geely Emgrand, CITROEN, FIAT, PEUGEOT, and other compatible gasoline cars.
Technical Specifications
Gauge Size: 52mm (2 inches)
Sensor OEM: 0258006028
Sensor Working Voltage: DC12V
Signal Line Voltage: 0–1V
Response Time: ≤100ms (600mV–300mV and 300mV–600mV)
Starting Time: ≤10 seconds
Heating Resistance: 8.5–9.5Ω
Internal Resistance: 200–300Ω
Item Weight: 400g
Material: Plastic Shell
Placement: Air Fuel Ratio Monitoring
Package Contents
1 × Air Fuel AFR Gauge (52mm)
1 × Narrowband O2 Oxygen Sensor (0258006028)
1 × English Installation Manual
Important Installation Notes
This gauge requires a professional installation and is not a universal kit — please ensure your vehicle is compatible with the narrowband O2 sensor before purchase. Incorrect installation may cause faulty readings or sensor damage.
