---
product_id: 34705449
title: "30-0311 X-Series OBDII Gauge"
brand: "aem"
price: "€ 352.81"
currency: EUR
in_stock: true
reviews_count: 13
category: "Aem"
url: https://www.desertcart.hr/products/34705449-30-0311-x-series-obdii-gauge
store_origin: HR
region: Croatia
---

# Auto-dimming light sensor Reads 200+ vehicle data channels Positive locking secure connector 30-0311 X-Series OBDII Gauge

**Brand:** aem
**Price:** € 352.81
**Availability:** ✅ In Stock

## Summary

> 🚗 Unlock your ride’s hidden data — drive smarter, not harder!

## Quick Answers

- **What is this?** 30-0311 X-Series OBDII Gauge by aem
- **How much does it cost?** € 352.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/34705449-30-0311-x-series-obdii-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

- • **Adaptive Brightness:** Auto-dimming sensor ensures perfect visibility day or night
- • **Sleek & Slim Design:** Compact 0.825” depth fits virtually anywhere in your cockpit
- • **Plug & Play Precision:** Effortless OBDII installation with power/data from a single port
- • **Engine Health Guardian:** Reads and clears Diagnostic Trouble Codes (DTCs) for peace of mind
- • **Visual Performance Boost:** 24 green LEDs provide instant, intuitive engine parameter feedback

## Overview

The AEM 30-0311 X-Series OBDII Gauge is a compact, easy-to-install automotive gauge that reads and clears diagnostic trouble codes and monitors over 200 data channels from 2008+ vehicles via the OBDII port. Featuring a positive locking connector, auto-dimming display, and 24 green LEDs for quick engine status reference, it’s designed for professional-grade monitoring with a sleek 52mm gauge diameter and ultra-slim profile for versatile mounting.

## Description

AEM 30-0311 X-Series OBDII Gauge

Review: Great Gauge - Awesome gauge to have. Easy to hook up. Easy to setup what setting u want. Super simple & clean looking. Will buy more.
Review: Works for AFR on 04 Rx8 - I bought this because I wanted to monitor AFR on my 04 Rx8. The info online was scarce. Seems most people install their own aftermarket sensors or dont even attempt to read AFR unless their car is boosted. AFR can easily detect a giant vacuum leak. Lean condition is terrible on the engine and this gauge gives me extra piece of mind that a loose rubber hose is not gonna kill my engine. The gauge itself is rather finncky. Its the only one on the market like it so you cant do much about it. It has a light sensor to dim the display; I could easily tap into the headlight circuit if they supplied a wire for that. Also it really does need constant power. The manual states they use some rules to determine whether to display the gauge or go into sleep mode. This means that if you try to add a switched power source, you lose the memory feature of being able to see the last PID when you turn your car on and off. It really doesn't like being unplugged and seems to forget certain PID's until some unknown car on and off cycling allows it to relearn. Overall good gauge but wish there were better options out there.

## Features

- Reads data channels from 2008+ MY vehicles through the OBDII port!
- Country of Origin : United States Reads and clears Diagnostic Trouble Codes (DTCs)!
- Package Weight: 0.272 kilograms. Easy to install and wire –power and data come from OBDII port using supplied connector
- Model Number: 30-0311 2-1/16th (52mm) gauge diameter for easy mounting in gauge pods
- Reads data channels from 2008+ MY vehicles through the OBDII port! Positive locking connector provides secure connection
- Auto dimming sensor delivers ideal display brightness 24 green outer LEDs for quick reference to engine parameter
- Compatible with vehicle/system voltages up to 16V
- Slim 0.825” overall gauge depth and 0.200” cup depth – mount them virtually anywhere

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BI2PQNY |
| Best Sellers Rank | #598,395 in Automotive ( See Top 100 in Automotive ) #1,961 in Code Readers & Scan Tools |
| Brand | AEM |
| Customer Reviews | 4.0 4.0 out of 5 stars (182) |
| Date First Available | February 5, 2016 |
| Exterior | Painted |
| Global Trade Identification Number | 00840879024567 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.7 ounces |
| Item dimensions L x W x H | 5.91 x 5.91 x 5.91 inches |
| Item model number | 30-0311 |
| Manufacturer | AEM |
| Manufacturer Part Number | 30-0311 |
| Material | Plastic |
| Model | 30-0311 |
| Product Dimensions | 5.91 x 5.91 x 5.91 inches |
| UPC | 840879024567 |

## Product Details

- **Brand:** AEM
- **Item Weight:** 0.22 Kilograms
- **Item dimensions L x W x H:** 5.91 x 5.91 x 5.91 inches
- **Material:** Plastic
- **UPC:** 840879024567

## Images

![30-0311 X-Series OBDII Gauge - Image 1](https://m.media-amazon.com/images/I/51NSqUTJS-L.jpg)

## Questions & Answers

**Q: Does this continuously use power or does it go to "sleep" so that there is no constant battery drain if the car is not running?**
A: It goes to sleep if engine is not running. Read on AEM website, it has a full info on how it works

**Q: i have a 2006 pontiac solstice. would it read my OBD2?**
A: Yes! Works for your Pontiac! Juts plug and go!

**Q: Will this work on a 2000 bmw e39 5 series?**
A: It will not unfortunately. The CAN protocol that this gauge operates on was not made standard across OEMs until 2008

**Q: Does this include the white faceplate?**
A: Hello thank you for your interest. This does not include the face plate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Gauge
*by P***T on July 17, 2025*

Awesome gauge to have. Easy to hook up. Easy to setup what setting u want. Super simple & clean looking. Will buy more.

### ⭐⭐⭐⭐ Works for AFR on 04 Rx8
*by A***X on July 7, 2021*

I bought this because I wanted to monitor AFR on my 04 Rx8. The info online was scarce. Seems most people install their own aftermarket sensors or dont even attempt to read AFR unless their car is boosted. AFR can easily detect a giant vacuum leak. Lean condition is terrible on the engine and this gauge gives me extra piece of mind that a loose rubber hose is not gonna kill my engine. The gauge itself is rather finncky. Its the only one on the market like it so you cant do much about it. It has a light sensor to dim the display; I could easily tap into the headlight circuit if they supplied a wire for that. Also it really does need constant power. The manual states they use some rules to determine whether to display the gauge or go into sleep mode. This means that if you try to add a switched power source, you lose the memory feature of being able to see the last PID when you turn your car on and off. It really doesn't like being unplugged and seems to forget certain PID's until some unknown car on and off cycling allows it to relearn. Overall good gauge but wish there were better options out there.

### ⭐⭐⭐⭐⭐ Simple and easy to use for 2012+cars
*by J***E on March 26, 2023*

Easy to use. Best for 2014+ cars due to more data avaliable. Instructions not included. Cord isn't very long but can be extended. Only reads OEM PID's which means its limited by your car manufacturer. Most cars it will read coolant temps, intake, battery volts, codes, RPM etc. Also wideband AFR, oil pressure, fuel pressure if your car stores that info. Only reads 1 thing at a time so its not a multi display. Gotta go to the vendor website for the instructions and code meanings...

## Frequently Bought Together

- AEM 30-0311 X-Series OBDII Gauge
- 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
- GlowShift Universal Black Single Pillar Gauge Pod - Fits Any Make/Model - ABS Plastic - Mounts (1) 2-1/16" (52mm) Gauge to Vehicle's A-Pillar

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**Shop now:** [https://www.desertcart.hr/products/34705449-30-0311-x-series-obdii-gauge](https://www.desertcart.hr/products/34705449-30-0311-x-series-obdii-gauge)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-01-28*