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.
Please note this is the pre-order. Orders start shipping on November 20th.
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
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-4-829a.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-3-c76f.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-2-789f.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-6-0f96.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
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![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-1-b8cc.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-5-0a80.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
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![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-7-0924.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-8-01f2.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_240,w_240)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-4-829a.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_640,w_640)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-3-c76f.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_640,w_640)
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![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-6-0f96.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_640,w_640)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-9-cd36.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_640,w_640)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-1-b8cc.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_640,w_640)
![[PRE-ORDER] RadioMaster ER3C-i ExpressLRS Surface receiver](http://ueeshop.ly200-cdn.com/u_file/UPAX/UPAX406/2311/02/products/ER3CI-1000x1000-5-0a80.jpg?x-oss-process=image/quality,q_80/resize,m_lfit,h_640,w_640)
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