General description The 52mm Air Fuel Ratio Gauge features a LED digital display and comes with a narrowband O2 oxygen sensor, designed specifically for 12V car racing applications. This gauge provides accurate readings of the air-fuel mixture, essential for optimizing engine performance. Technical specifications Part Number: 0258006028 Working Voltage: DC12V Signal Line Voltage: 0-1V Output Voltage: Maximum value greater than 900mV / Minimum value less than 50mV Start Time: ≤ 10s Heating Resistance: 8.5~9.5Ω Internal Resistance: 200~300Ω Material: Plastic + Metal Gauge Diameter: 52mm Compatibility and accessories Includes: 1 * Instrument 1 * Oxygen Sensor 1 * Wiring Harness Other information Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.