High Precision 52mm Digital Air Fuel Ratio Gauge for 12V Cars Includes Lambda Probe Oxygen O2 Sensor Universal Fit Gauge Specification:<br> 1. Easy Installation With Users Manual In English<br> 2. Comes with Mounting and Installation hardware.<br> 3. Professional Installation is Highly Recommended.<br> 4. Add a racing look and feel to your ride,High quality and light weigh.<br> 5. Smoke tint lens during the day,Clear and bright LED Display during the night.<br> Package Include:<br> 1x52mm Air Fuel Ratio Gauge<br> 243-6204 Sensor Specification:<br> -Voltage: 12V<br> -Gross weight: 133g<br> -Length: 580mm/22.8"<br> -Thread Size: 18mm/0.71"<br> -Spanner Size: 22mm/0.87"<br> -Material: Metal<br> -OE number: 234-4209<br> Fitment:<br> Fit For Toyota Chevrolet<br> 4 Wire:<br> - Black wire is connect power (+)<br> - Black wire is connect power(-)<br> -Blue wire is connect the AFR Ratio Gauge Green wire ,<br> - White wire is connect the Put up Iron. Can connect the metal at your car<br> Package Included:<br> 1* oxygen sensor 234-4209