---
product_id: 260920770
title: "30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge"
brand: "aem"
price: "€ 333.46"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.it/products/260920770-30-0300-x-series-wideband-uego-afr-sensor-controller-gauge
store_origin: IT
region: Italy
---

# ultra-fast response time 87% larger display multi-output data logging 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge

**Brand:** aem
**Price:** € 333.46
**Availability:** ✅ In Stock

## Summary

> 🚀 Tune smarter, drive safer, and never miss a beat with AEM’s X-Series Wideband Gauge!

## Quick Answers

- **What is this?** 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge by aem
- **How much does it cost?** € 333.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/260920770-30-0300-x-series-wideband-uego-afr-sensor-controller-gauge)

## Best For

- aem enthusiasts

## Why This Product

- Trusted aem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Data Outputs:** Seamlessly integrate with 0-5V, RS232, and CANbus for advanced data logging and feedback control.
- • **Lightning-Fast Response:** Experience ultra-quick wideband feedback for safer, more powerful engine tuning in real time.
- • **X-Digital Wideband Tech:** Unlock next-level engine optimization with readings other controllers simply can’t match.
- • **Built for Continuous Use:** Durable design built to stay on your dash, delivering reliable performance lap after lap.
- • **Massive 87% Larger Display:** See your AFR data with crystal-clear precision on a bold, modern faceplate that commands attention.

## Overview

The AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge features an 87% larger seven-segment display for enhanced readability, ultra-fast response times for precise engine tuning, and multiple output options including 0-5V, RS232, and CANbus for comprehensive data logging. Its advanced X-Digital wideband technology provides unmatched accuracy, making it an essential tool for professional-grade engine management and safer, optimized performance.

## Description

Buy AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Tengo 2 meses de uso y está funcionando perfectamente
Review: トラスト正規輸入品となっていますが、日本語説明書が無く、どうやら並行輸入品?みたいので☆-1。説明書の配線図でオプション使う予定ない場合、IGONとアースしか使わないみたいので、特に日本語説明書必要なさそうなので、返品はしませんが。 価格は並行輸入品ではやや安い方。トラスト正規輸入品なら破格値でしたが(笑)短納期で受け取れたのはグッド。迅速な対応ありがとうございました。 取り付けは予算の関係上、まだ先です。このモデルは付けっぱなし大丈夫らしいので、期待大です。

## Features

- The X-Series wideband UEGO AFR sensor controller gauge (PN 30-0300) features a modern, visually striking faceplate and new seven-segment, center display that is 87% larger than the 30-4110 AEM
- The gauge includes a 0-5v and RS232 Serial Port output for feedback control and data logging, and an AEMnet (CANbus) output for data logging
- X-Digital wideband technology gives these controllers the ability to read and report values that other controllers do not, which can deliver more optimized engine tuning and a safer overall operating condition
- Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune
- When tuning an engine using wideband AFR feedback control on an inertia dyno, dead time affects the data you are looking at because it is reported in a different operating location than when it actually occurred

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0184TSI84 |
| Brand | AEM |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,029) |
| Date First Available | 6 December 2015 |
| Exterior | Painted |
| Item Weight | 0.28 g |
| Item model number | 30-0300 |
| Manufacturer | AEM |
| Manufacturer Part Number | 30-0300 |
| Model | 30-0300 |
| OEM Part Number | 30-0300 |

## Product Details

- **Brand:** AEM
- **Global Trade Identification Number:** 00840879024437
- **Item weight:** 0.01 Ounces
- **Material:** Plastic
- **UPC:** 840879024437

## Images

![30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge - Image 1](https://m.media-amazon.com/images/I/61NZ-5-mnOL.jpg)

## Questions & Answers

**Q: Is it compatible with standard hp tuners vcm scanner for data logging?**
A: Yes

**Q: do I need 30-0310 also or is this complete?**
A: No need, the aem 30-0300 is a complete kit. The controller is in the gauge itself.

**Q: Does this come with a bosch 4.9 lsu?**
A: yes

**Q: How do you mount this? Do i have to buy a seperate mounting device?**
A: 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***A on 22 August 2024*

Tengo 2 meses de uso y está funcionando perfectamente

### ⭐⭐⭐⭐ Review
*by ま***ぅ on 29 December 2020*

トラスト正規輸入品となっていますが、日本語説明書が無く、どうやら並行輸入品?みたいので☆-1。説明書の配線図でオプション使う予定ない場合、IGONとアースしか使わないみたいので、特に日本語説明書必要なさそうなので、返品はしませんが。 価格は並行輸入品ではやや安い方。トラスト正規輸入品なら破格値でしたが(笑)短納期で受け取れたのはグッド。迅速な対応ありがとうございました。 取り付けは予算の関係上、まだ先です。このモデルは付けっぱなし大丈夫らしいので、期待大です。

### ⭐⭐⭐⭐⭐ Review
*by W***. on 6 November 2025*

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.

## Frequently Bought Together

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-01*