do I need 30-0310 also or is this complete?

No need, the aem 30-0300 is a complete kit. The controller is in the gauge itself.

How do you mount this? Do i have to buy a seperate mounting device?

HelloWe usually mount it with this gauge pod Autometer 2204 or same oneIt sells separate https://www.amazon.com/Auto-Meter-2204-Mounting-Cup/dp/B0009RUXPG/ref=sr_1_2?ie=UTF8&qid=1491381219&sr=8-2&keywords=2204

Aem 30 0300 X Series Wideband Uego Afr Sensor Controller

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Description

🏁 Dominate your tune with precision AFR control!

RACE READY BUILD - Purpose-built for motorsport pros who demand accuracy and reliability on the track.
VERSATILE DATA OUTPUTS - Seamlessly integrate with 0-5V, RS232, and CANbus systems for real-time logging and control.
LIGHTNING FAST RESPONSE - Experience ultra-quick sensor feedback for precision tuning and safer engine performance.
X DIGITAL BROADBAND TECH - Unlock AFR readings from 8.0:1 to 20.0:1 that other controllers simply can’t match.
MASSIVE 87 LARGER DISPLAY - See your AFR data in stunning clarity with the biggest center readout in its class.

The AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge is a race-only, high-performance air-fuel ratio meter featuring an 87% larger seven-segment display, ultra-fast response times, and multiple output options including 0-5V, RS232, and CANbus for advanced data logging and feedback control. Designed for professional motorsport environments, it delivers unmatched AFR measurement range and accuracy.

Specifications

ASIN	B0184TSI84
Brand	AEM
Brand Name	AEM
Customer Reviews	4.6 out of 5 stars 2,086 Reviews
Global Trade Identification Number	00840879024437
Included Components	Product
Item Type Name	Indicator
Item Weight	0.01 Ounces
Manufacturer	AEM
Material	Plastic
Material Type	Plastic
Model Number	30-0300
Number of Items	1
Part Number	30-0300
UPC	840879024437

Reviews

S**A

Excelente

Tengo 2 meses de uso y está funcionando perfectamente

22.08.2024

G**A

Rapido y original

Perfexto funcionamiento, calidad superior

17.01.2025

W**.

It’s the real deal 👍🏼

I’m writing this for people on the fence about whether it is the real AEM gauge/sensor or not. It is, I went to AEM’s website and compared the part numbers and pics and it is exactly the same. I installed it per instructions and warnings and it is working perfectly. It’s a good deal and a great product.

6.11.2025

R**O

Ottimo

Spedizione molto veloce, arriva tutto come si presenta in foto

9.03.2022

R**U

Seller didn't advertise this item properly

Some of the digits were not working properly.

9.10.2025

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