AEM Digital Wideband Air/Fuel Controller Accurate AFR Data Monitor

AEM Digital Wideband Air/Fuel Controller — Accurate AFR Data Monitor Monitor and tune with confidence. The AEM Digital Wideband Air/Fuel Controller delivers precise, real-time AFR (air/fuel ratio) readings so you can optimize performance, fuel economy, and engine safety. High-precision wideband sensor for consistent, reliable AFR measurement across the full tuning range. Real-time digital output for engine management systems, dataloggers, and gauges — enabling accurate closed-loop and open-loop tuning. Protects your engine by helping you avoid dangerously lean conditions and performance-sapping rich mixtures. Easy integration with aftermarket ECUs and popular logging platforms; compact design fits most installations. Trusted AEM quality — engineered for motorsport and street tuning with proven durability and repeatable results. Whether building a race engine or refining a street tune, precise AFR data is essential. The AEM Digital Wideband Air/Fuel Controller gives tuners and enthusiasts the actionable information they need to achieve maximum power and long-term reliability.