DX3 Smart 3-Channel Transmitter with SR315 Receiver (SPM2340)

With the 3-channel DX3 2.4GHz DSMR radio and SR315 receiver, budget-conscious drivers can upgrade affordably for superior range, response and interference resistance - and also be equipped to take advantage of innovative Spektrum Smart technology.


DX3 Smart 3-Channel TX


The DX3 is much more than an economical 3-channel transmitter. Together with the included SR315 receiver, it's the most affordable radio system that offers the superior range, response, and interference resistance of exclusive Spektrum DSMR technology. Plus, drivers using the DX3 are also equipped to enjoy the breakthroughs of innovative Spektrum Smart Technology.

Install a Spektrum Smart LiPo battery and Smart Firma™ ESC in your model, and you can view vehicle battery capacity at a glance on the DX3 transmitter's convenient voltage level indicator.


  • DSMR® Technology for superior range, response and interference resistance
  • 3-Channel operation (Steering, Throttle, AUX1)
  • Smart Technology ready with the included SR315 receiver
  • New styling focused on ergonomics
  • Foam covered steering wheel for better control
  • Convenient voltage level indicator for Smart batteries
  • Supports the on-demand traction control of AVC® technology
  • Servo reversing and trim dial
  • 3-position throttle limiter

Learn More

Head to Horizon for more info.

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