--- product_id: 545054883 title: "AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge" brand: "aem" price: "€ 749.55" currency: EUR in_stock: true category: "Aem" url: https://www.desertcart.be/products/545054883-aem-30-0300-x-series-wideband-uego-afr-sensor-controller store_origin: BE region: Belgium --- # ultra-fast response time 87% larger center display 52mm compact size AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge **Brand:** aem **Price:** € 749.55 **Availability:** βœ… In Stock ## Summary > 🏁 Race-Ready Precision in a Sleek, Space-Smart Package ## Quick Answers - **What is this?** AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge by aem - **How much does it cost?** € 749.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/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 - β€’ **Instant Readiness:** Factory-calibrated for rapid startupβ€”get race-ready in seconds - β€’ **Data-Driven Control:** 0-5V, RS232, and CANbus outputs enable seamless integration and real-time logging - β€’ **Sleek Visual Impact:** 87% larger seven-segment display ensures critical data is impossible to miss - β€’ **Compact Yet Commanding:** 52mm diameter with an ultra-slim profile fits tight spaces without compromise - β€’ **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 utilizes advanced X-Digital broadband technology to accurately measure air-fuel ratios from 8.0:1 to 20.0:1 with ultra-fast response times. Designed for easy integration, it offers 0-5V, RS232, and CANbus outputs for data logging and feedback control. Its slim profile allows installation in tight spaces, 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 ## 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 | | Best Sellers Rank | #233,300 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #8 in Car Electrical Air & Fuel Ratio | | Brand Name | AEM | | Country of Origin | USA | | Customer Reviews | 4.6 4.6 out of 5 stars (2,157) | | Global Trade Identification Number | 00840879024437 | | Included Components | Product | | Item Type Name | Indicator | | Item Weight | 0.01 Ounces | | Manufacturer | AEM | | Material Type | Plastic | | Model Number | 30-0300 | | Number of Items | 1 | | Part Number | 30-0300 | | UPC | 840879024437 | ## Product Details - **Brand:** AEM - **Item Weight:** 0.01 Ounces - **Material:** Plastic - **Number of Items:** 1 - **UPC:** 840879024437 ## Images ![AEM 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 ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/545054883-aem-30-0300-x-series-wideband-uego-afr-sensor-controller](https://www.desertcart.be/products/545054883-aem-30-0300-x-series-wideband-uego-afr-sensor-controller) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-29*