Castle Creations Telemetry Link X-BUS (Spektrum) - 010-0148-00

Maybe you want to know the voltage of your onboard battery(s), how many RPMs the motor is turning or the temperature of your ESC. In this day and age R/C is not just one way communication anymore. Traditional radio systems transmit signals from the controller to the receiver, but Telemetry-capable systems send real-time data from your model back to your transmitter. The X-BUS Telemetry Link was developed based on communication protocol disclosed from Spektrum