Edelbrock Quik Data 1 data recorder. Complete basic 91001 set up. Has G-meter, rpm, and driveshaft sensor. Complete set up in original box. Manual, data recorder, drive shaft sensor and wiring harness.This unit was installed in a comp car several years ago but car was never finished and was parted out. This unit can be expanded. Additional sensors can be added to record oil pressure, fuel pressure, trans temp, engine temp,and egt's. Sensors available through Summit or Jegs. Only requires basic lap top with windows operating system 98 or newer to download recorded info.