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. 

Telemetry options include: 
   Provided directly from receiver 
          - Flight log data 
          - Battery voltage 
          - RPM 
          - Lap Timer 
   Provided by external device e.g.: Flight Controller 
          - Flight log if using more than 1 receiver 
          - Battery voltage 
          - RPM 
          - Lap Timer 
          - Current draw and total mAh consumption 
          - Temperature 
           - All other data the FC can send that we support such as GPS, accelerometer date, ESC data, etc...