The RadioMaster ER8 receiver is built around the innovative ExpressLRS protocol, delivering high performance, reliable signal transmission, flexible configuration, and fast response times for a wide range of R/C applications.

Designed for users who require high channel capacity and reliable telemetry, the ER8 supports up to 8 servo channels and features built-in receiver voltage telemetry and flight battery voltage telemetry, with automatic detection of the appropriate voltage input.

A 4-wire CRSF interface is provided for future expansion and connection of additional telemetry sensors. The ER8 also features a dual-antenna design with up to 100mW telemetry power for reliable communication.

The receiver housing is manufactured using a one-piece injection-molding process, providing a robust structure with high mechanical strength and enhanced durability.

Features

• Built on the revolutionary ExpressLRS protocol
• Delivers high performance, reliable signal transmission, flexible configuration, low latency, and excellent link quality
• Supports 8 PWM channels
• Ground-up optimized PCB design for improved performance and reliability
• Supports automatic voltage telemetry for external battery voltage or built-in receiver voltage
• Supports Wi-Fi firmware updates and WebUI configuration
• Equipped with a high-quality 2.54 mm connector
• Includes a standard 20 cm high-sensitivity antenna
• Includes a reserved 4-pin CRSF input port for future expansion and telemetry sensors
• One-piece injection-molded housing with high structural strength and durability
• Suitable for a wide range of R/C applications
• Compatible with all 2.4GHz ExpressLRS modules and transmitters with built-in 2.4GHz ExpressLRS

Specification

Package Includes

• 1 * ER8 2.4GHz ELRS PWM Receiver
• 1 * Voltage telemetry wire (Type-B)
• 1 * CRSF wire
• 1 * ELRS-RX-SBUS wire
• 1 * User Card