The AQ-1 Data Logger records and stores vehicle data so that it can be downloaded and analyzed. Knowledge is power; and the information stored in the AQ-1 Data Logger can help users improve a vehicle's tuning and set up; and their own driving ability. It is ideal for all types of racing and street performance enthusiast vehicles. WHY YOU WANT ONE AEM's AQ-1 Data Logger is easy to use; feature packed; and it won't break the bank with an estimated street price of $349 with harnesses sold serpeately. With logging rates of up to 1000HZ (1000 samples/second) per channel; the system is one of the fastest on the market; and with 2GB of logging memory standard its also one of the largest. Additionally it features an internal 3-axis accelerometer; a removable SD card for virtually unlimited logging (up to 32GB at a time); and includes an available RS-232 serial input for adding an NMEA GPS device. The AQ-1 Data Logger includes three switched to ground digital inputs; four 0-5 V analog inputs with optional pullup resistor for RTD/Thermistor-style sensors; four additional analog inputs that can optionally be used to measure RPM or other frequency-based signals; and AEMnet (the new high speed communications network that links enabled AEM products together) capability for direct connection to a 4-Channel UEGO controller; AEM Series2 EMS; AEM's-4 or other future AEMnet enabled devices. NEW!!! ??? 30-2906-18 AQ-1 18 FLYING LEAD WIRING HARNESS AEM's high-quality; color-coded 18 flying lead wiring harness for the AQ-1 data logger includes everything you need to properly wire your vehicle in one easy-to-follow configuration. We silk screen each individual wire function onto the body of the wire to ease the installation process and reduce any chance of misidentifying a wire during set-up.