2in 12V Air Fuel Ratio Gauge Voltmeter LED Digital Display High Precision Universal for Car.

1. Reads the air-fuel mixture from 10 to 20 AFR: rich: 1820 AFR, optimal: 1218 AFR, lean: 1012 AFR.
2. Monitoring your car's air-fuel ratio allows you to adjust the ratio to maximize engine power and performance, reduce emissions, and improve fuel economy.
3. Highly visible, it can be easily viewed from any angle in any lighting conditions.
4. Easy to install, including the necessary wiring harness and mounting hardware; no other sensors are required.
5. 2-inch diameter, black dial, luminous red needle, and black face. Strong compatibility, universally used in cars, SUVs, vehicles, automobiles, etc.

Specification:

Item Type: Air/Fuel Ratio Gauge.
Material: ABS
Color: Black
Diameter: Approx. 52 mm/2 inches
Reading: Blue Digital LED
Power Supply: 12V/Max. 0.3A
Viewing Angle: ≤180°
With Red, Green, and Yellow LEDs
Accurate Electronic Reading, 20 LED Display
Compatibility: Universal fit for most cars
How to Use:
1. Connect the power cord to the gauge.
2. Black represents the negative terminal; it can be used when connected to the vehicle's negative terminal.

Package List:

1 x Air-Fuel Ratio Gauge

1 x Wiring Harness

1 x Manual

Note:

Professional installation is highly recommended.