More info per square inch! This gauge is actually a computer and a monitor that reads and calculates all the data your vehicle makes available. The Banks Super Gauge can display up to five parameters and can datalog up to 20 min/max values, dependent on what is actually available on your vehicles bus. Add the data logging option and you get continuous data logging on up to 100 values. Use it to read data you never even knew you could or knew existed. Don't just monitor your vehicles performance - define it!.