2/16 Chrono Chrome Gauge Air/Fuel Ratio Wideband

The 2/16 Chrono Chrome Gauge Air/Fuel Ratio Wideband from Autometer is the essential tuning instrument for serious engine builders and performance enthusiasts. This gauge displays real-time air-to-fuel mixture ratios with wideband sensor accuracy, allowing you to optimize combustion efficiency and prevent costly lean-condition detonation. Whether you're dialing in a carbureted street engine, tuning a naturally aspirated build, or managing forced-induction fuel delivery, this gauge provides the precision feedback needed to extract maximum power while maintaining reliability.

The wideband sensing technology captures air-fuel ratio across a wide operational range, far surpassing traditional narrowband oxygen sensors in responsiveness and accuracy. Autometer's Chrono series combines this technical capability with a chrome bezel design that commands attention on any dashboard while meeting OEM durability standards. The gauge face is engineered for clear readability under all lighting conditions, and the compact 5.5-inch form factor integrates seamlessly into custom gauge clusters or pod installations without sacrificing visibility or ergonomics.

Mechanics and tuners depend on this gauge for carburetor jetting verification, EFI tuning validation, and post-modification baseline confirmation. It's equally valuable during dyno sessions, street testing, and long-term engine monitoring to catch gradual jetting or fuel delivery drift. Installation requires wideband sensor integration into your exhaust manifold or primary collector and a clean 12V power source; compatibility extends across most fuel-delivery platforms including carburetors with auxiliary fuel systems, traditional EFI, and modern engine management setups.