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Serial RC Receiver with Telemetry.The SPM4649T quad racing serial receiver offers full-range performance with integrated telemetry providing FPV racing enthusiasts with a serial receiver that can transmit vital telemetry data. Like SPM4648, the 4649T offers a 1-wire serial connection that is compatible with most flight controllers and an input for telemetry data such RPM, battery voltage and a whole lot more. Spektrum enthusiasts with telemetry capable transmitters such as the DX6, DX8, DX9 or DX18 can now receive on-demand telemetry data, and by using the voice functionality of compatible G2 transmitters, can have specific telemetry data outputted via the on-board audio system.Key FeaturesSmall size and lightweight designWorks with most popular flight controllersSingle line connection provides output to FC while receiving telemetry input from FC or batteryDual antennas for optimal range and RF performanceTelemetry options provided directly from receiver:Flight log dataBattery voltageRPMLap timerTelemetry options provided by an external device (like a Flight Controller):Flight log, if using more than one receiverBattery voltageRPMLap timerCurrent draw and total mAh consumptionTemperatureAll other supported data the FC can send, such as GPS, accelerometer date, and ESC dataIncludes:DSMX Quad Race Serial Receiver with Telemetry