RadioMaster ER3C-i ExpressLRS 2.4GHz / 3CH PWM Receiver

Powered by the cutting-edge ExpressLRS protocol, this compact receiver supports 3 PWM channels and features a built-in high-sensitivity ceramic antenna. With automatic voltage telemetry detection and Wi-Fi configurability, it’s the perfect blend of performance and convenience.

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

COMPATIBILITY:

• Radio Transmitter/Controller with ELRS Protocol

SPECIFICATIONS:

• Model: ER3C-i  
  
• Protocol: ExpressLRS 3.3.0 (pre-installed)  
  
• Channels: 3 PWM  
  
• Input Voltage: 4.5V – 8.4V 
• Antenna: Built-in high-sensitivity ceramic  
  
• Telemetry Power: 10mW  
  
• Wi-Fi: Supported (for firmware updates and WebUI)  
  
• TCXO: Included (for temperature-stable performance)  
  
• Dimensions: 26.1 × 18.5 × 13.0mm  
  
• Weight: 4.2g

HELPFUL LINKS:

• User Manual

INCLUDES:

(1) ER3C-i 2.4GHz ELRS PWM Receiver
(1) Voltage Telemetry Wire
(1) User Card