RadioMaster ER5Ci Express ELRS 5-Channel 2.4GHz Receiver. The RadioMaster ER5C-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!
The ER5C-i ELRS receiver can drive up to 5 servos and has built-in receiver voltage telemetry and battery telemetry with the ability to automatically detect which voltage input to use. The ER5C-i features a built-in high-sensitivity ceramic antenna, that is designed for all types of surface models and provides a clean install without antenna wires to worry about!
Features:
- Compatible with all 2.4GHz ExpressLRS modules and transmitters with built-in 2.4GHz ExpressLRS
 - 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
 - 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
 - Extremely lightweight and compact
 
Specifications:
- Input Voltage: DC 4.5 - 8.4V
 - Channels: 5CH PWM
 - Frequency Range: 2400-2483.5Mhz
 - Wireless protocol: ExpressLRS 3.3.0 pre-installed
 - Telemetry Power: 10mW
 - Antenna Type: Built-in high-sensitivity ceramic antenna
 - Dimensions: 30x18.5x13mm
 - Weight: 5g
 - Battery voltage detection range: DC 4.0-35V
 
Includes:
- (1) ER5C-i Receiver
 - (1) Manual
 - (1) Voltage telemetry wire