DX3S 3-Channel DSM Surface Radio with Telemetry



*at participating retailers

Find a Retailer


Buy It Now


Get up-to-the-second updates on your vehicle’s status with the DX3S transmitter.

Combining industry-leading Spektrum™ 2.4GHz DSM® technology with valuable telemetry features, the DX3S transmitter represents the most advanced sport-level DSM radio ever developed. RTR drivers and sport racers can add the safety of telemetry and monitor vital vehicle stats right from their transmitter, without any additional equipment. Keep your engine operating in the optimum temperature range, keep an eye on your battery voltage and check out just how fast your vehicle is running, all right from the large LCD readout of the DX3S transmitter. The DX3S transmitter is now compatible with the MR3000 and DSM2® surface receivers too.

Always purchase products from a Horizon Hobby, Inc. authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, Inc. disclaims all support and warranty with regards, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM2 or Spektrum products.

Attention: Horizon Hobby has confirmed that all Spektrum Products being sold by KoKo Technology are counterfeit.  We consider it a danger to use these products, waive all liability and will not support any warranty or service in regards to them.

* The typical telemetry range is 100–200 feet and will vary depending on the operating environment.


  • Integrated telemetry with graphically depicted gauges on transmitter (requires DSM® telemetry compatible surface receiver)*
  • 10-model memory
  • Includes free bonus SR300 3-channel DSM sport receiver
  • Compatible with DSM, DSM2® and marine surface receivers
  • Monitor your engine's or motor’s operating temperature in either Fahrenheit or Celsius
  • Never let a low battery stop you in your tracks – the DX3S transmitter and integrated telemetry let you watch over your receiver pack’s voltage to keep you in the running
  • Keep tabs on your engine’s operating range-safe high-rev operation
  • Rolling-selector user interface for fast, easy programming and setup
  • 10-character model naming
  • 3 grip sizes (small, medium, large)
  • Adjustable Frame Rate: 11 or 16.5ms
  • ModelMatch™ technology
  • Expert and standard modes
  • Digital trims
  • Throttle punch
  • Steering dual rate
  • Travel adjust
  • Sub trims
  • Servo reverse
  • Exponential
  • 3-timer functions
  • Aux/Steering channel mixing
  • Telemetry alerts
  • Buzzer adjustments - high, low & off
  • Screen contrast
  • Transmitter battery alert
  • Right-hand configuration (only)
  • Pre-set failsafe on all 3 channels
  • Dual ball bearing steering wheel design for smooth and precise operation


# of Channels:
DSM® (compatible with marine and DSM2® surface receivers too)
SR3300T and SR300
Model Memory:
Expert and standard
Transmitter (Tx) Battery Type:
AA alkaline (4 included)

Parts & Accessories

Included   (See All)

  • Head Temperature Sensor

  • Battery/Motor Temperature Sensor

  • RPM Sensor

  • Sensor Mount Hardware: .21-.26

Parts Listing   (See All)

  • Battery Door: DX3S, DX2S, DX3E, DX3C

  • Grip Set: DX3S, DX2S, DX3E, DX3C

  • LCD Cover: DX3S/DX2S

Optional Accessories   (See All)

  • Custom Steering Wheel, 5-Spoke, Black: DX3S

  • Custom Steering Wheel, 5-Spoke, Orange: DX3S

  • Custom Steering Wheel, BBS Black: DX3S

  • Custom Steering Wheel, BBS Orange: DX3S

Used In...   (See All)

The "DX3S 3-Channel DSM Surface Radio with Telemetry" is used in the following:
















Thursday, June 18, 2009

New DX3S systems (SPM3140) are now compatible with DSM2 surface receivers and the Marine receiver (SPMMR3000), in addition to DSM surface receivers. The SPM3140 transmitter features the below logo on the back.

If you own an earlier DX3S system (SPM3130) and would like it upgraded with the new technology, please contact the Spektrum Service center.  The upgrade costs $50 plus shipping and the turn around time is approximately 3-5 weeks.

For US customers, please contact:
Horizon Hobby, Inc.
4105 Fieldstone Road
Champaign, IL 61822

Technical Notes

Telemetry Range:

The typical telemetry range is 100–200 feet and will vary depending on the operating environment.

Telemetry requires a DSM® telemetry-compatible receiver (SPM1205, SPMSR3300T). Telemetry is not available on the MR3000 or DSM2® receivers.

Replacement Antenna:

The replacement antenna for the DX3S transmitter is not available separately. Please contact Horizon Hobby Service for replacement options.