🚀 Elevate Your Ride with Precision Performance! Experience engine optimization with a lightning-fast 20ms response time. Easily integrates with various systems, supporting voltages up to 16V. Stay ahead of the curve with real-time air-fuel ratio tracking. Choose between Resistor Trim Mode or Free Air Mode for tailored accuracy. Switch effortlessly between air-fuel ratio, lambda, and oxygen percentage. 20ms response time 24-color LED display Dual calibration modes The 30-0300 Wideband UGEO Air Fuel Ratio Gauge is a cutting-edge tool designed for automotive enthusiasts and professionals alike. Featuring a dual-sided, 52mm gauge with a vibrant 24-color LED display, it allows for real-time monitoring of air-fuel ratios, lambda values, and oxygen percentages. With a rapid 20ms response time and dual calibration modes, this gauge ensures optimal engine performance and reliability. Compatible with a wide range of vehicles and systems, it also comes with a 12-month warranty for peace of mind.