Измеритель соотношения воздуха и топлива 52 мм, светодиодный цифровой дисплей с широкополосным датчиком кислорода O2, автомобильный Измеритель для автомобиля 12 В

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Price:100,00 $ - 110,00 $
Price in USD:Details


Product Overview


Product Description

Product List
1: Air/Fuel Ratio Gauge (digital 12/24V or pointer 12V)
2: Controller box
3: Four Wires connected to the controller box
1>Power wire of controller box (150cm, 2P)
2>Oxygen sensor wire (300cm, 6P)
3>Gauge wire (200cm, 3P)
4>USB wire (100cm, 4P)
4: Oxygen sensor bung
5: Installation instruction
6: LSU4.9 Wideband oxygen sensor (available for separate purchase)

Function Instruction
1: Air/Fuel Ratio Gauge When the engine is working, the fuel and the air can be mixed to form a combustible mixture. The Ratio of
air mass to fuel mass in the combustible mixture is the Air/Fuel Ratio.

The Air/Fuel Ratio Gauge can indicates accurate Air/Fuel Ratio based on, according to the processed signals from the Wideband
oxygen sensor.

The default parameter of the Gauge is set for gasoline engines (applicable for both gasoline and diesel).

2: Controller box
The controller box uses Bosch's dedicated Air/Fuel Ratio chip, it can obtain the data from the LSU4.9 wideband oxygen sensor, and
send it to the gauge and computer. The accuracy of the Air/Fuel Ratio can reach 0.1!
The LSU4.9 Wideband oxygen sensor can detect the Air/Fuel Ratio of multiple fuels. In addition, the controller box can analyze the
Air/Fuel Ratio of a wide range of fuels.

1>Gasoline (the best Air/Fuel Ratio: 14.7)
2>LPG (the best Air/Fuel Ratio: 15.5)
3>Methanol (the best Air/Fuel Ratio: 6.4)
4>Ethanol (the best Air/Fuel Ratio: 9.0)
5>CNG (the best Air/Fuel Ratio: 17.2)
6>Diesel (the best Air/Fuel Ratio: 14.6)

Generally speaking, gasoline is thought as the default fuel for controller box. Since gasoline and diesel differ slightly in their
best Air/Fuel Ratio, the Air/Fuel Ratio of gasoline can be used to detect diesel. (Attention!It should be noted that w When the
voltage of diesel engine is 24V, the voltage needs to be converted to 12V through a transformer.)

3: Four Wires connected to the controller box
1>Power wire of controller box (2P): Connect 12V power supply
2>Oxygen sensor wire (6P): Connect the LSU4.9 Wideband oxygen sensor and the controller box
3>Gauge wire (3P): Connect the controller box and the gauge, send the Air/Fuel Ratio signals to Gauge,
4> USB wire: Connect the controller box and the computer. The computer should install software , then can show all kinds of
parameters of the oxygen sensor on the software.

4: Oxygen sensor bung
Drill a hole with a diameter of 21mm-22mm in the exhaust pipe and weld the bung into the hole, In this way, Tthe oxygen sensor
thus can be installed in a convenient manner


Car Gauge
Place of Origin
Brand Name
Model Number
Car Make
Item Height
Item Weight
Placement on Vehicle
Air Fuel Ratio
Material Type
Plastic Shell
Special Features
Car Gauge
Digital gauge
Oxygen display
Fuel ratio
Display with narrowband
Natural packing
Paypal T/T

Packing & Delivery


Company Profile

Max Power Auto Racing Products Co., Ltd. is professional manufacturer of a large variety of racing & performance items. Our products include turbo timers, blow off valves, fuel regulators, boost controllers, air filters, oil catch tanks, turbochargers, throttle bodies, steering wheels, shift knobs, mufflers and intercoolers/oil coolers. We play a leading role in providing customers with high quality racing performance parts, good services, and competitive price.

We have well respected and experienced experts in our team for daily and all-year-round supervision and quality control over many different industries related to our products. This is to make sure that our final products are always the best.

In our team, services available are not only related to the manufacture, but also to innovation, modification, design and customization as per market feedback and customers' specific requirements. We can manufacture based on your samples, your logos and designs.

For further information on our product lines or manufacturing capabilities, please do not hesitate to contact us. We look forward to hearing from you.


1. who are we?
We are based in Zhejiang, China, start from 2007,sell to North America(20.00%),Southern Europe(20.00%),Domestic Market(20.00%),South America(8.00%),Western Europe(7.00%),Eastern Europe(4.00%),Southeast Asia(4.00%),Africa(4.00%),Oceania(4.00%),Mid East(3.00%),Eastern Asia(3.00%),Central America(3.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Blow Off Valve,Exhaust Pipe,Car Suspension Kit,Auto Gauge,Fuel Fitting

4. why should you buy from us not from other suppliers?
Manufacturer/ Trading Company/ customized/ delivery fast

5. what services can we provide?
Accepted Delivery Terms: FOB;
Accepted Payment Currency:USD;
Accepted Payment Type: T/T,MoneyGram,PayPal,Western Union;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian

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