There is detailed information on the website, I only post some of the specifications here.
Power: 8V to 12V DC power supply. Some
transmitters, especially those FUTABA ones, can supply power directly by trainer
connector. (ex. T9Z, FF9C). Some transmitters cannot supply power to X-GYRO, for
example 14MZ and 12FG. The simplest solution is to use an extra battery forthose RC transmitters. The connector is already included in package.
Range for measuring: +-90 degree/second rotational speed movement.
There is a thread about this item on rcgroups.com
Edit: A review by BlueAngel2000 of this product can be found in this thread.