This is a complete Eagle Tree telemetry system that I bought primarily to be able to record GPS speed over ground and 2-axis G forces in my large models. The transmitter (red in the photo) is on 900MHz and is the AU/NZ legal version. The system will be delivered with GPS and G force sensors plugged in and the system configured so all one has to do is supply voltage and turn on the Seagull data dashboard to be ready to go. Includes: Flight data recorder, GPS sensor, G force sensor, cylinder head temperature thermocouple probe kit (unused), USB cable, Y leads, CD-ROM with all documentation etc. The system was last used in my F-22 Raptor. It will give the peak values recorded during a flight by pressing the receiver MAX button. I have recorded 13.5G! Original cost $895. Only selling because I don't foresee any future need for it.