RadioMaster ER3C-i 2.4GHz ELRS PWM Receiver

RadioMasterSKU: RMS-RX-ER3Ci

Sale price$16.99

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Radiomaster ER3C-i

Great product, great service.

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The RadioMaster ER3C-i receiver utilizes the advanced ExpressLRS system, known for its high performance and groundbreaking features. It offers exceptional reliability, versatile configuration options, rapid response times, and an extensive reception range, delivering a fresh and improved user experience.

With the capability to control up to 3 servos, the ER3C-i ELRS receiver incorporates built-in features such as receiver voltage telemetry and battery telemetry. It can intelligently detect the appropriate voltage input automatically. The receiver is equipped with a high-sensitivity ceramic antenna, ensuring optimal performance for various surface models. Additionally, its design allows for a tidy installation without the need for antenna wires.


  • 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
  • Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS


  • 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

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