High Precision<br> Racing look enhance the characteristic to your car/vehicle<br> Function: Numbers clearly show, LED backlit for easy reading in the darkness.<br> Versatile design: In addition to measuring and displaying the air/fuel ratio, the Air/Fuel Ratio Gauge also features a broadband measurement and digital display. This means you have access to more comprehensive data and into your engine's combustion state for precise tuning and optimization<br> Fitment:Universal 52mm diameter Voltmeter fit for Motorcycle Car /Truck/ Gasoline Engine<br> (The compatibility just for reference .Please make sure the item fit for your car before purchase.)<br> Fitment:<br> Fit most of 12Volt gasoline vehicle,<br> Fit 2inch or 52mm Diameter Gauge Pods holder<br> Voltage:DC 12V<br> Diameter:52mm/2Inch<br> Note:<br> Installation guide not included, we strongly recommend you professional installation.<br> Please check as much as possible to make sure the item is what you need.<br> Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use.<br> Type:Automotive 12V Generation 1 Universal Air-Fuel Ratio Meter Kit<br> Colour:As Shown<br> Material:Plastic<br> Package Contents:<br> 1 x Air Fuel Ratio Measurement Kit<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.