RadioMaster ER3Ci Express ELRS 3-Channel 2.4GHz Receiver. 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!
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, that is designed for all types of surface models and provides a clean install without antenna wires to worry about!