Feature. 1. Real time display. 18 engine parameters includes RPM, speed, AFR, TPS. Alarms available. 2. Data log. Log with 2 hours maximum. Log file can be read with i-View tool in PC. Analysis log data with Curve chart. 3. Fuel adjust for ECU 4. Spark adjust for ECU 5. aRacer bLink is necessary for this application.