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Spektrum DX5 Pro 2021 5-Channel DSMR Tx with SR2100 Rx

Spektrum (SPM) Logo Spektrum DX5 Pro 2021 5-Channel DSMR Tx with SR2100 Rx
This is a Spektrum part #SPM5025, DX5 Pro 2021 5-Channel DSMR Transmitter with SR2100 Receiver capable of 5.5-Millisecond frame rate, Multiple mixing setups and Smart Technology compatible

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If you're a racer, basher or boater who's looking for an affordable radio with a "custom" feel and next-generation capabilities, look no further than the Spektrum™ lineup's new top-of-the-line surface transmitter: the 5-channel DX5 Pro 2021.

Available as transmitter only or matched with an SR2100 DSMR® receiver, the DX5 Pro 2021 delivers the performance and comfort of a pro-class radio at a price that won't break your hobby budget. Its improved ergonomics, connectivity and programmability are ready to take your control to the next level.


  • (1) Spektrum™ DX5 Pro 2021 5-channel DSMR® Transmitter
  • (1) Spektrum SR2100 DSMR® Full-Range 3-Channel Receiver


  • (4) AA Transmitter Batteries


  • Smart Technology compatible out of the box
  • Five fully proportional channels
  • Generous ergonomic options for tailoring the transmitter to your feel
  • Multiple mixing setups including Motor on Axle (MOA)
  • Upgraded RF Module for stronger signal and improved output power
  • DSMR® 2.4GHz technology (backwards compatible with DSM2®)
  • 5.5-Millisecond frame rate with compatible receivers
  • Advanced programming features, made easy to use with SimpleScroll™ interface
  • Built-in telemetry
  • Programmable vibe alerts
  • 250-Model memory
  • LiPo battery compatible (battery not included)
  • Spektrum™ SR2100 5.5ms DSMR® receiver, updated with Smart compatibility


Application: Surface
Band: 2.4GHz
Channels: 5
Frame Rate: 5.5 Ms
Input Voltage: 4 - 8.4V
Model Memory: 250
Modulation: DSMR
Product Height: 5.3" (135 mm)
Product Length: 8.3" (211 mm)
Product Weight: 1.4lbs (0.63Kg)
Product Width: 5.6" (142 mm)
Programmable: Yes
Range: Full
Rate Positions: 3 POS
Receiver: Included
Resolution: 2048
SD Card/Airware Capable: Yes
Telemetry: Yes
Transmitter (Tx) Battery Type: 4 x AA or LiPo transmitter pack (not included)

Product Videos

Features Overview

The Spektrum™ DX5 Pro 2021 is ready right out-of-the-box to support the innovative connectivity of Spektrum™ Smart Technology. With a Spektrum™ Firma™ Smart ESC and Smart battery in your model, you'll have real-time telemetry data available at your fingertips to keep you aware of every component's status and to boost your confidence in its capabilities. Smart Technology ensures that all of your model's electronics work together seamlessly for the greatest efficiency and performance. It makes your entire system more responsive and simpler to use.

The DX5 Pro 2021 features Spektrum's latest RF module, engineered around DSMR® 2.4GHz technology. This generates a stronger and more robust signal, increases the telemetry range, and creates an extremely reliable connection between the transmitter and receiver. When paired with a receiver capable of 5.5ms frame rates, such as the SR2100, the DX5 Pro 2021 delivers lightning-fast response that gives new meaning to the word "connected".

The ergonomically designed DX5 transmitter has a feel that any driver can appreciate. Its overall low weight minimizes fatigue, while the non-slip rubber grip and trigger-throttle action deliver precise control that feels perfectly natural. To these, the updated DX5 Pro 2021 transmitter adds a new steering wheel mechanism that increases the accuracy and precision of steering motion.

Among the many ergonomic options available for tailoring the DX5 Pro 2021 transmitter to your personal touch are updated trim tabs, designed to make their operation easier while you drive your vehicle.

The DX5 Pro 2021 offers an impressive number of programming features — and they're easy for anyone to use, thanks to the SimpleScroll™ programming interface that makes navigating menus and changing settings as simple as "scroll and click". You can program up to five drive modes per model to help dial in the perfect drag racing and lap times. Drive modes can also be used to program compatible AVC® (Active Vehicle Control™) receivers to match your skill level, driving style, and terrain to provide predictable handling at every speed. There are multiple mixing setups, including Motor-On-Axle (MOA), plus ABS, Traction Control and 4-wheel steering, dual rates, expo and more.

You can select from a variety of vibe alerts for timer alarms, low battery voltage and other telemetry functions. Most of these can be set to go off when the voltage level or telemetry data exceeds specific values that you can easily define in the telemetry menus.

Built around frequency-agile DSMR® technology, the SR2100 — updated for Smart telemetry compatibility — consistently delivers superb range and a lightning-fast 5.5ms frame rate, even where many 2.4GHz systems are in use at once. It has an incredibly small footprint with an internal antenna that eliminates the need for external antenna tube support, so it mounts easily on most chassis.

Product Specifications

Part NumberSPM5025
Frame Rate5.5 Ms
Input Voltage4 - 8.4V
Model Memory250
Product Height5.3" (135 mm)
Product Length8.3" (211 mm)
Product Weight1.4lbs (0.63Kg)
Product Width5.6" (142 mm)
Rate Positions3 POS
SD Card/Airware CapableYes
Transmitter (Tx) Battery Type4 x AA or LiPo transmitter pack (not included)
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