X-Series AFR Gauge, A wideband UEGO sensor controller accurately monitors Air/Fuel ratios (AFR) during the tuning process to prevent a lean fuel mixture, which could lead to engine damage.<br> It has combined its single-channel wideband UEGO controller and gauge display into one unit, uniting unsurpassed AFR accuracy and control with an easy-to-read interface.<br> The Gauge-Type Wideband UEGO Controller features a digital LED display and sweeping LED "needle" that changes colors as AFR changes from rich to lean.<br> The unit's 52mm (2-1/16inch) gauge housing fits in most gauge pods and can be remotely mounted virtually anywhere.<br> High temperature resistance (-30℃ to 120℃)<br> Super toughness.<br> 2.5 ultra-thin thickness.<br> Part Number:30-0300<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> Colour:As Shown<br> Material:Plastic<br> Package Contents:<br> 1 * O2 Air Fuel Ratio Gauge 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.