---
product_id: 545054883
title: "30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge"
brand: "aem"
price: "€ 765.21"
currency: EUR
in_stock: true
reviews_count: 5
category: "Aem"
url: https://www.desertcart.gr/products/545054883-30-0300-x-series-wideband-uego-afr-sensor-controller-gauge
store_origin: GR
region: Greece
---

# ultra-fast response time 87% larger center display 52mm compact size 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge

**Brand:** aem
**Price:** € 765.21
**Availability:** ✅ In Stock

## Summary

> 🏁 Race-Ready Precision in a Sleek, Compact Package

## Quick Answers

- **What is this?** 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge by aem
- **How much does it cost?** € 765.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/545054883-30-0300-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

- • **Trusted by Pros:** 4.6-star rating from 2,100+ users who demand precision and reliability on the track
- • **Race-Ready Slim Design:** Less than 1-inch depth with ultra-slim cup depth for versatile installation anywhere
- • **Plug & Play Data Logging:** 0-5V, RS232, and CANbus outputs for seamless integration with your race data systems
- • **Big Display, Small Package:** 87% larger seven-segment center display in a sleek 52mm gauge for easy, stylish mounting
- • **Precision Meets Performance:** X-Digital broadband tech delivers unmatched AFR accuracy from 8.0:1 to 20.0:1

## Overview

The AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge is a race-use-only, 52mm diameter gauge featuring an 87% larger seven-segment center display for enhanced readability. It offers ultra-fast response times and advanced X-Digital broadband technology to accurately measure air-fuel ratios from 8.0:1 to 20.0:1. With multiple output options including 0-5V, RS232, and CANbus, it integrates effortlessly into data logging systems. Its slim design allows flexible mounting, making it a top choice for professional racers seeking precision and reliability.

## 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: Excelente - Tengo 2 meses de uso y está funcionando perfectamente
Review: Rapido y original - Perfexto funcionamiento, calidad superior

## 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 |
|---------------|-------|
| ASIN | B0184TSI84 |
| Brand | AEM |
| Brand Name | AEM |
| Country of Origin | USA |
| Customer Reviews | 4.6 out of 5 stars 2,101 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 |

## Product Details

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

## 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

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

Tengo 2 meses de uso y está funcionando perfectamente

### ⭐⭐⭐⭐⭐ Rapido y original
*by G***A on 17 January 2025*

Perfexto funcionamiento, calidad superior

### ⭐⭐⭐⭐⭐ Aem for the win
*by K***Y on 20 May 2026*

No issues, straight forward install. 17 sierra

## 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.gr/products/545054883-30-0300-x-series-wideband-uego-afr-sensor-controller-gauge](https://www.desertcart.gr/products/545054883-30-0300-x-series-wideband-uego-afr-sensor-controller-gauge)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-16*