Are you looking for a gauge that will monitor your engines air fuel ratio? Look no further. The Auto Meter Air-Fuel Ratio Monitor is the answer. This gauge is a full sweep green to red LED, lean to rich display that is easy to see day or night. It monitors exhaust temperatures thru your factory oxygen sensor. With this Air Fuel Ratio Gauge, you can prevent exhaust temperatures from getting too hot.
Works with most factory narrow-band O2 sensors. Installs without special tool requirements.
Cool LED Night Time Lighting (#7163 Shown in Image)

Auto Meter's C2 Series analog gauges are a hot new style featuring a white face during the day, and full dial blue LED illumination at night.
Advanced 90 degree air core movements and simple three wire installation characterize these high performance instruments. Electric sending units keep hazardous fluids in the engine compartment sending collected data via an electrical signal to quick reacting, precise air core movements to give you all the information that you need and nothing that you don’t.