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73.6$
37.54$
Quantity:
1
Availability:
Color
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Feature:
- High Precision
- Racing look enhance the characteristic to your car/vehicle
- Fitment : Universal 52mm diameter Voltmeter fit for Motorcycle Car /Truck/ petrol Engine
(The compatibility just for reference .Please make sure the item fit for your car before purchase.)
Fitment:
Fit most of 12Volt petrol vehicle,
Fit 2" or 52mm Diameter Gauge Pods holder
Application:
Color: Black
Voltage: DC 12V
Diameter: 52mm/2“
Material: Plastic
Quantity: 1 Set
Package Included: (as the picture shows)
1x Air Fuel Ratio Gauge
OR
1x Sensor
OR
1x Gauge Cup
Note: The gauge cup needs to be purchased separately, the gauge does not contain the gauge cup ! !


O2 sensor instructions
- The white line is at heater ab
- Black line signal line C, gray line signal ground D
- The green wire of the instrument is connected with the black wire of the sensor.
- The gray line is connected to the negative pole of the battery.
- One white wire connect with the car shell or battery negative pole.
Another white wire connect to the ACC line of ignition switch
- The white line is the heater and does not distinguish between positive and negative electrodes
- About the air fuel gauge, please see the installation instructions.






























About FQA
Q:Are the product photos real?
A:Yes,All the photos displayed are 100% real.and photos are all taken by ourself.But maybe there are some color shading because of monitors.
Q:How do I pay for my purchase?
A:we accept the following payment methods: credit card; money booker, T/T;western union.
Q:When the delivery?
A:we will send your orders in 1-7 days(according to you order's quantity )after the payment.But in case of any hot products are temporarily out of stock,we will contact you asap to ask an extension or change other items or any of your suggestion.
Q:How much does it cost to ship to my country?
A:Package less than 2kg will be shipped by China Post Airmail.the item you would like to purchase weighs more than 2kg. You can place the orders separately, making sure each order weighs less than 2kg, to take advantage of free shipping. You can either choose another express carrier, can ship the package via Fedex/DHL/UPS for you package!
Q: I am a reseller, I would like to buy many pieces of your item, What's the wholesale price?
A:Thanks for your inquiry. if you would like to buy large quantity, please Contact us .we will give you the best price. thanks .
Warm Tips
Due to hand measure, the size may have 1-2 cm(0.4~0.8'') differs
Due to different monitors and lights, 85-98% Similar to the pictures , but there will be little color difference .
Due to long shipping, the item may damage in transit, if the item damage, pls contact us immediately first before leave feedback, thanks for your kindly understanding
About Feedback
1.If you are satisfied with our products and services,please leave your postive feedback and 5 stars.
2.If you don't satisfied our products,pls contact us before you leave negative feedback.
3.we guarantee we will 100% slove any problem for you and make you satisfied.

Customer Reviews
54 ratings
satisfactory (6)
good quality (2)
reliable performance (2)
adequate instructions (2)
fast delivery (1)
aesthetic design (1)
Customer photos (22)
P***n
November 27, 2025
Variant: Color:Gauge and sensor
good, nice value
Buyer from Italy
May 20, 2026
Variant: Color:Gauge and sensor
perfect
Buyer from Norway
May 6, 2026
Variant: Color:Air Fuel Ratio Gauge
great product. tested. going to use on my maxxecu. on pwm output
G***z
April 24, 2026
Variant: Color:Gauge and sensor
The item arrived as described, but the instruction manual didn't match the installation instructions. After searching for videos on YouTube, I was able to install it correctly for a 2009 Honda Civic Si. Here's how to install it without difficulty: Clock 🔴 Red Wire - 12V ignition switch 🔑 🟡 Yellow Wire - Ignition switch ⚫️ Black Wire - N- (chassis ground) 🟢 Green Wire is the signal wire; it connects to the lambda sensor with ⚫️ Black Wire (Oxygen Sensor). Oxygen Sensor ⚫️ Black Wire, connect to 🟢 Green Wire (clock) ⚪️ Gray Wire - N- (chassis ground) Both White Wires (Optional) can be connected to the car's original oxygen sensors.
Buyer from Mexico
March 26, 2026
Variant: Color:Gauge and sensor
Very good product of excellent quality, arrived ahead of schedule, 100% recommended.
Buyer from Chile
March 18, 2026
Variant: Color:Gauge and sensor
Mark well by installing the sensor in the correct location🫡
52mm Digital Air Fuel Ratio Gauge Car Gauge AFR Fit for 12V Car Voltmeter 2 in 1 Can Be Paired With Narrowband O2 Oxygen Sensor
73.6$
37.54$
Quantity:
1
Availability:
Color







