The DataMaxx Bracket Kit is designed to give you all of the essential information that every racer should know while staying under a grand! You're not going to pay for anything you're not going to use with this kit and with the DataMaxx Module system you can easily upgrade at any time should the need arise. Comes with Engine RPM, Driveshaft RPM, Oil psi, Water Temp, a single EGT Probe, Battery Voltage and 2 Switch Monitors