SKU: 55498735757

RadioMaster ER3Ci 2.4GHz ELRS PWM Surface Receiver with Built in Antenna

Sale price$21.59 Regular price$23.99
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

RadioMaster ER3Ci 2.4GHz ELRS PWM Surface Receiver with Built in AntennaThe RadioMaster ER3C i receiver is based on the high performance, revolutionary ExpressLRS system, featuring high reliability, highly flexible configuration, ultra fast response speeds, and an ultra long receiving range, bringing with it a brand new usage experience. The ER3C i ELRS receiver can drive up to 3 servos and has built in receiver voltage telemetry and battery telemetry with the ability to automatically detect which voltage input to use.

The RadioMaster ER3C-i receiver is based on the high-performance, revolutionary ExpressLRS system, featuring high reliability, highly flexible configuration, ultra-fast response speeds, and an ultra-long receiving range, bringing with it a brand-new usage experience.

The ER3C-i ELRS receiver can drive up to 3 servos and has built-in receiver voltage telemetry and battery telemetry with the ability to automatically detect which voltage input to use. The ER3C-i features a built-in high-sensitivity ceramic antenna, it is designed for all types of surface models and provides a clean install without antenna wires to worry about.

You can also find all the PWM Surface Receivers in the RadioMaster MT12 Surface Radio Controller Collection.

Check out all our ExpressLRS ProductsReceivers, and the rest of our RadioMaster Products!

 

 

Features:

  • Built-in high-sensitivity ceramic antenna
  • Based on the Revolutionary ExpressLRS System
  • High performance, high reliability, flexible configuration, fast response speed and ultra-long range
  • Supports 3 PWM Channels
  • Automatically detects voltage telemetry of external battery voltage or receiver battery / ESC BEC voltage
  • Optimized ground up PCB design
  • Supports Wi-Fi updates and WEBUI configuration
  • Built-in a TCXO (temperature compensated crystal oscillator), ensures stable and accurate performance in any environment
  • Designed for all types of surface models 

Specifications:

  • Item: ER3C-i 2.4GHz ELRS PWM Receiver
  • Power supply: DC 4.5 - 8.4V
  • Antenna type: Built-in high-sensitivity ceramic antenna
  • Wireless protocol: ExpressLRS 3.3.0 pre-installed
  • Output channel: 3CH PWM
  • Telemetry power: 10mW
  • Battery voltage detection range: DC 4.0 - 35V
  • Weight: 4.2 grams
  • Dimensions: 26.1*18.5*13.0 mm
  • Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER3C-i 

Package Includes:

  • 1 * ER3C-i 2.4GHz ELRS PWM Receiver
  • 1 * Voltage telemetry wire
  • 1 * User Card
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 55498735757

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    Riggs
    Waukegan, US
    ★★★★★ 5
    Fits my 2026 civic sport perfect!
    Size: AF151
    No issues, fitment is perfect. Great quality for an excellent price. Dealer wanted like $24 for a basic one. Nah I'm good I'll just go on Amazon and get it for $8. Took 30 seconds from start to finish can't get any easier.
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    Reviewed in the United States on May 25, 2026
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    Ant Farmer 1
    Chelsea, US
    ★★★★★ 5
    Fits well and installs easily.
    Size: AF997
    This filter looked about the same as the OEM filter. It installed in about a minute. The quality appeared to be fine. It was protected in a cardboard box. It fit my 2014 Subaru Outback perfectly. I just installed it an hour ago so I don’t have any long term observations about longevity or effectiveness. I can’t see any reason why it would not work as well as the original, it seemed identical.
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    Reviewed in the United States on May 29, 2026
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    Nicholas K
    Phoenix, US
    ★★★★★ 5
    Great filter
    Size: AF259
    This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.
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    Reviewed in the United States on May 19, 2026
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    Amazon Customer
    Battle Creek, US
    ★★★★★ 5
    Great fit and quality
    Size: AF113
    Not a complicated product, but after going to 2 different auto parts stores and this not being in stock, Amazon to the rescue. Arrived the next day and the quality is definitely on par with “store brand” ones from retailers. Definitely cheaper as well.
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    Reviewed in the United States on April 23, 2026
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    AC
    Cuba, US
    ★★★★★ 5
    Fit my 2014 Accord perfectly
    Size: AF476
    Seems to be the same quality as OEM. Fit perfectly. Easy to install.
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    Reviewed in the United States on April 24, 2026

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