{"product_id":"aem-x-series-wideband-uego-afr-controller-gauge-30-0300-x-digital-fast-response-large-display","title":"AEM X-Series Wideband UEGO AFR Controller Gauge 30-0300 — X-Digital fast response, large display","description":"\u003cb\u003eThe AEM 30-0300 X-Series is a high-speed wideband UEGO AFR sensor controller gauge built on X-Digital technology for faster, more accurate air\/fuel readings and advanced data outputs.\u003c\/b\u003e\n\n\u003cp\u003eDesigned for tuners, performance shops, and enthusiasts who demand rapid and reliable air\/fuel information, the AEM X-Series (PN 30-0300) combines a bold new display with industry-leading X-Digital electronics. This controller reads AFR with quicker response than many competitors, provides multiple outputs for logging and closed-loop control, and presents information on a large, clear faceplate so you can act on results faster during dyno sessions or track use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the X-Series 30-0300 improve response and why does that matter?\u003c\/h3\u003e\n\u003cp\u003eThe X-Digital architecture reduces internal processing latency so the controller reports AFR changes sooner than many other wideband units. Faster reporting helps you see transient events and reduces the delay between an event and the readout, improving the quality of tuning decisions and closed-loop control.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePatent-pending X-Digital electronics for reduced dead time\u003c\/li\u003e\n  \u003cli\u003eFaster wideband feedback for more accurate tuning during dynamic conditions\u003c\/li\u003e\n  \u003cli\u003eBetter transient capture on inertia dynos and aggressive drive cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat outputs and connections does this controller offer for data logging and control?\u003c\/h3\u003e\n\u003cp\u003eThe 30-0300 offers several industry-standard outputs so you can integrate AFR data into standalone management systems or logging rigs. You get a 0–5 V analog output, RS232 serial for direct data streams, and AEMnet (CANbus) for networked data logging and synchronized instrumentation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e0–5 V analog output for ECU and logger compatibility\u003c\/li\u003e\n  \u003cli\u003eRS232 serial port for direct digital logging and PC interfacing\u003c\/li\u003e\n  \u003cli\u003eAEMnet\/CANbus output to share AFR data with compatible AEM systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the display and physical design offer for everyday use?\u003c\/h3\u003e\n\u003cp\u003eAEM updated the faceplate and central readout to make values easier to read at a glance. The seven-segment center display is substantially larger than prior AEM units, improving visibility in dash installations or on the dyno while retaining a clean, performance-oriented look.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLarge seven-segment center display for quick AFR checks\u003c\/li\u003e\n  \u003cli\u003eModern faceplate designed for instrument clusters and pod mounts\u003c\/li\u003e\n  \u003cli\u003eClear layout that reduces reading errors under stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does faster wideband measurement affect tuning safety and performance?\u003c\/h3\u003e\n\u003cp\u003eQuicker AFR reporting reduces the mismatch between when combustion events occur and when they appear in your logs, giving a more truthful picture of engine behavior. This helps tuners avoid leaning or enrichment surprises during transient loads and improves closed-loop correction timing for safer, more consistent performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImproved transient accuracy for safer fueling decisions\u003c\/li\u003e\n  \u003cli\u003eReduced dead-time errors when using wideband feedback control\u003c\/li\u003e\n  \u003cli\u003eBetter input for power optimization on varying load conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The AEM 30-0300 X-Series is aimed at professional tuners, performance shops, motorsport teams, and committed enthusiasts who need fast, dependable wideband AFR data during tuning sessions or competitive use. If you require rapid response, multiple data outputs, and a highly readable display for integration with modern engine management and logging systems, this controller is built to deliver.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the 30-0300 support CANbus logging?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it includes AEMnet (CANbus) output for networked data logging and system integration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the 0–5V output with an aftermarket ECU?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 0–5V analog output is compatible with most ECUs and data loggers for AFR feedback.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AEM","offers":[{"title":"Default Title","offer_id":48082848743582,"sku":"B0184TSI84","price":295.02,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/aem-x-series-front-faceplate.jpg?v=1785816222","url":"https:\/\/northtrailauto.ca\/products\/aem-x-series-wideband-uego-afr-controller-gauge-30-0300-x-digital-fast-response-large-display","provider":"North Trail Auto","version":"1.0","type":"link"}