This is the Futaba GYA431 Dual Servo Airplane Gyro. FEATURES: Lightweight gyro developed to control the elevators (pitch axis) or ailerons (roll axis) Remote gain adjustment Stabilizes flight with even hard-to-control scale model airplanes Mode switching function allows AVCS/NORMAL gyro mode switching S.Bus and S.Bus2 compatible Sensitivity Trimmer, LED Monitor, Two Servo Compatibility in S.Bus and S.Bus2 mode only, and Digital/Analog servo function. One year limited warranty through Hobby Services beginning at date of purchase INCLUDES: Futaba GYA431 Gyro, Red and Black Extension Cords, Wiring Strap, Mini Screwdriver, two sections Sensor Tape and Instruction Sheet SPECS: Gyro Sensor: MEMS vibrating structure gyro Operating Voltage: DC4.0V - 8.4V Current Drain: 30mA (excluding a servo) Operating Temperature Range: -10°C to +45°C Dimensions: 0.81 x 0.81 x 0.43" (20.5 x 20.5 x 11mm) Weight: 0.12oz (3.5g) COMMENTS: Dual servo output is only available when using with S.BUS. To install, plug the servo into port 3. Port 2 can be used for remote gain by connecting it to the desired channel on the receiver. If not using remote gain, gyro sensitivity can be adjusted using the limit trim. When using S.BUS, port 2 can be used for the second aileron or elevator servo. Port 1 is used for the servo channel from the receiver when not using S.BUS input, otherwise it is connected to the S.BUS network via the receiver or another S.BUS device. When not using S.BUS, the Aileron/Elevator switch has no effect. When using S.BUS, the Aileron/Elevator switch determines the channel this gyro will accept input from. Putting the swich in the aileron position will set input to channel 1. Putting the switch to the elevator position will set input to channel 2. When using with S.BUS, channel assignments for this gyro are fixed: Aileron: CH 1 Elevator: CH 2 2nd aileron: CH 6 2nd elevator: CH 9 Gyro sensitivity, aileron: CH 5 elevator: CH 7 modified phijwa 12/5/12 jxs 10/02/12 ir/jxs