Black Face;Completely standalone with easy-to-read analog dial - Great for EFI or carbureted applications; Includes Bosch LSU 4.9 wideband O2 sensor which is compatible with all fuel types (Unleaded, Leaded, E85, Diesel, or Methanol); Gauge reads in gasoline scale only; Slim-style mounting requires very little dash space for installation; 270° sweep pointer from 6 to 3 o’clock makes gauge easy to read at a glance; Internal microprocessor controls the pointer movement to ensure accurate movement in street, off road, and racing conditions; Adjustable LED warning light allows user to set both low and high reluctor points; Peak recall button allows user to view min/max gauge readings; Gauge includes a 5 ft. 6-pin weathertight sensor harness and 4 ft. power/ground/lighting harness allowing for flexible mounting locations; Spin lock ring threads to back of gauge case for simple and secure gauge mounting; CNC machined billet aluminum bezels with anodized finish – Bezels are threaded for easy; Multiple bezel options available separately – User can customize the gauge to their preference;