Auto Meter 6160 Cobalt Full Sweep Electric Boost Gauge Modern blue LED through-the-dial lighting provides clear visibility during nighttime use Includes data acquisition grade solid-state MAP Sensor, providing unmatched accuracy and durability even in the harshest environments Auto Meters race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system Gauge kit includes MAP Sensor, T-Fitting, nylon tubing, vacuum fittings, wiring harness, mounting hardware, and detailed instructions for installation