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 Aug 4 - Aug 9

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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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    4.3 ★★★★★
    Based on 16 reviews
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    C
    Verified Purchase
    Cindy heller
    Los Angeles, US
    ★★★★★ 5
    Good quality
    Color: Chocolate, Size: 8 Panel
    Very nice looking divider. We are using as a privacy divider around our hot tub. We have not left it out in the weather yet due to many storms coming through.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 31, 2026
    S
    Verified Purchase
    stacyann
    West Palm Beach, US
    ★★★★★ 5
    Great privacy option for townhome deck!
    Color: White, Size: 6 Panel, Color: White, Size: 6 Panel
    Deck privacy! I wanted a way to add some privacy to my second floor townhome deck. It’s been holding up well and doesn’t look junky! I used zip ties on one end so I can open and close it as I wish. Great solution to living in close quarters to your neighbors! I purchased the six panel and it’s a perfect size
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 3, 2026
    A
    Verified Purchase
    Amazon Customer
    Phoenix, US
    ★★★★★ 4
    Flimsy
    Color: Beige, Size: 8 Panel
    It’s thinner than what I thought and flimsy.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 2, 2026
    A
    Verified Purchase
    Amazon Customer
    Pawtucket, US
    ★★★★★ 5
    Good Product
    Size: 3 Panel-102'', Color: Beige
    I got these dividers for outdoor use for some privacy from neighbors. They arrived quickly and were easy to set up. They look good, and though the legs don’t offer stability against any amount of wind—which I expected as it wasn’t advertised for outdoor use—all it took was placing a cinder block on the feet to hold it up right. Coverage is good, it’s easy to fold and move as needed, and it’s light weight. All in all a decent product. I will caution the purchase of “used like-new,” as both of the dividers I ordered were previously returned items, and one came missing a cap, instructions were not included, and the poles were all mixed up and not properly labeled. If I had not ordered a second divider (which did include the instructions) I would have had a much harder time figuring out which pieces were which and how to put them together.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 30, 2025
    J
    Verified Purchase
    julie h.
    Louisville, US
    ★★★★★ 5
    So versatile! Perfect solution for dividing a room.
    Size: 4 Panel-88'', Color: Grey, Size: 4 Panel-88'', Color: Grey
    Perfect solution for my space. My office has to double as the hangout room for the kids and I wanted something that would block off my computer so it is left alone. This space allows me to close off my computer as much or as little as I want. It is lightweight yet has sturdy feet. This is important so that if it gets bumped it won’t topple over. The price was great and the build time wasn’t too bad! I would recommend two people for set up. I went with the grey panels and I think I’ll end up hanging some twinkle lights at some point. Great purchase!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 9, 2025

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