Features:
2-in-1 car meter shows the air-fuel ratio and battery voltage, accurate and easy to view.
Made of high-quality plastics, with nice durability, strong and anti-aging.
It can help improve vehicle performance and make driving safer.
52mm/2in universal gauge fits for 12.0V motorcycle, car, truck, gasoline engine.
Easy to install and use, reliable quality, is a nice modification accessories.

Specifications:
Color: Black
Material: Plastics
Working Voltage: 12 V
Signal Line Volatge: 0-1V
Output Voltage: Max. Value≥900mV / Min. Value≤50mV
Response Time: (600mV-300mV)≤100ms
Response Time: (300mV-600mV)≤100ms
Starting Time: ≤10s
Heating Resistance: 8.5-9.5Ω
Internal Resistance: 200-300Ω
Mounting Diameter: 52mm/ 2in
Item Size: 57 * 57 * 40mm/ 2.2 * 2.2 * 1.6in
Package Size: 150 * 100 * 50mm/ 5.9 * 3.9 * 2.0in
Package Weight: 300g/ 10.6oz

Packing List:
1 * Air Fuel Ratio Gauge Kit1
1 * Oxygen Sensor
1 * Gauge Cable
1 * Manual