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

The RadioMaster ER3Ci 2.4GHz ELRS PWM Surface Receiver is a compact, single-channel receiver designed for surface RC applications, such as RC cars, boats, and crawlers. Powered by the ExpressLRS protocol, this receiver offers stable and low-latency signal performance, making it perfect for high-response control. With an integrated antenna, the ER3Ci eliminates the need for an external antenna, keeping setup easy and streamlined. Its small form factor allows for easy installation in tight spaces, making it a great choice for both beginners and advanced users seeking reliable, hassle-free connectivity.

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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