---
product_id: 545054883
title: "AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge"
brand: "aem"
price: "€ 244.94"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.de/products/545054883-aem-30-0300-x-series-wideband-uego-afr-sensor-controller
store_origin: DE
region: Germany
---

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

**Brand:** aem
**Price:** € 244.94
**Availability:** ❌ Out of Stock

## Summary

> 🏁 Dominate your tune with precision AFR control!

## Quick Answers

- **What is this?** AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge by aem
- **How much does it cost?** € 244.94 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/545054883-aem-30-0300-x-series-wideband-uego-afr-sensor-controller)

## 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

- • **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.

## Overview

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.

## Description

The X-Series Wideband UEGO AFR Sensor Controller Gauge (PN 30-0300) measures 2 1/16th-inch (52mm) in diameter, and features a modern, visually striking faceplate and new seven-segment center display that is 87% larger than the 30-4110AEM Wideband Gauge's center display. This creates the perception of a larger overall gauge, but in a common 52 mm size for easy mounting. Its slim depth (less than one inch overall) and ultra slim cup depth of .200-inches dramatically increases its application base and potential mounting locations. Note: No warranty for the Lambda Sensor

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

- This is a "race use only" product. No warranty for Lambda sensor. Sensor return is not accepted
- The UEGO X-Series Broadband AFR Sensor Control Meter (PN 30-0300) features a modern, visually appealing viewer and a new seven-segment center display 87% larger than the 30-4110 AEM
- The indicator 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 broadband technology gives these controllers the ability to read and report values that other controllers do not have. Displays petrol values from 8.0: 1 to 20.0: 1 AFR
- Faster response times improve broadband feedback control and can provide a safer, more powerful and accurate melody

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | AEM |
| Manufacturer | AEM |
| Model number | 30-0300 |
| Colour | Black / White |
| Number of Memory Sticks | 1 |
| Specific Product Use | Use in vehicle environments |
| Item Weight | 0.28 g |
| Item model number | 30-0300 |
| Included Components | Product |
| Are batteries included? | No |

## Product Details

- **Brand:** AEM
- **Material:** Plastic
- **Item Weight:** 0.01 Ounces
- **Style:** Modern
- **Measuring Range:** 8.0:1 bis 20.0:1 AFR

## Images

![AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge - Image 1](https://m.media-amazon.com/images/I/31GTzHgr8oL.jpg)
![AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge - Image 2](https://m.media-amazon.com/images/I/31lntPaWSLL.jpg)
![AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge - Image 3](https://m.media-amazon.com/images/I/31xQdaFwqFL.jpg)
![AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge - Image 4](https://m.media-amazon.com/images/I/417JOeUiAtL.jpg)
![AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge - Image 5](https://m.media-amazon.com/images/I/41A5ra5OPLL.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

- AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge
- HP Tuners PROLINK+ Cable with Analog and CAN Bus inputs for External Sensors Using MPVI2+ and MPVI3 OBD2 Scan Tools, Cable Only
- GlowShift Universal Black Single Gauge Swivel Dashboard Pod - Fits Any Make/Model - Swivels 360 Degrees - ABS Plastic - Mounts (1) 2-1/16" (52mm) Gauge to Vehicle's Dash

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.de/products/545054883-aem-30-0300-x-series-wideband-uego-afr-sensor-controller](https://www.desertcart.de/products/545054883-aem-30-0300-x-series-wideband-uego-afr-sensor-controller)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-29*