The RadioMaster ER series of PWM receivers is built on the innovative ExpressLRS protocol. It provides high performance, dependable signal, versatile configuration, and quick response time, offering a new experience for your projects and applications.

The RadioMaster ER8 receiver has been specially designed for users. It can drive up to 8 servos and has built-in receiver voltage telemetry and flight battery telemetry with the ability to automatically detect which voltage input to use. A 4-wire CRSF interface is provided to facilitate later expansion of telemetry sensors. The ER8 features a dual-antenna with telemetry power up to 100mw. The receiver shell adopts one-piece molding process with high structural strength.

Features

• Based on the Revolutionary ExpressLRS System
• High performance, high reliability, flexible configuration, low latency, and strong link quality
• Support 8 PWM Channels
• Optimized ground up PCB design
• Automatically voltage telemetry of external battery voltage or built-in receiver voltage
• Supports Wi-Fi updates and WEBUI configuration
• High quality 2.54 mm connector
• Standard 20 cm High Sensitivity Antenna
• Reserve 4pin CRSF input port
• Shell adopts one-piece molding process with high structural strength
• For many applications
• Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS

Specification

• Item: ER8 2.4GHz ELRS PWM Receiver
• Power supply: DC 4.5 - 8.4V
• Antenna type: 20cm high sensitivity antenna
• Wireless protocol: ExpressLRS 3.3.0 pre-installed
• Output channel: 8CH PWM
• Serial Output: CRSF / Sbus
• Telemetry power: maximum 100mw (LUA Adjustable)
• Battery voltage detection range: DC 4.0 - 35V
• Bus interface: CRSF
• Weight: 16.5 grams
• Size: 43*30*15mm
• Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER8 2.4GHz Diversity+8xPWM RX

Size

RadioMaster ER Series Receivers

• ER4 ELRS PWM Receiver
• ER6 ELRS PWM Receiver
• ER8 ELRS PWM Receiver
• ER6G/ER6GV ELRS PWM Receiver
• ER8G/ER8GV ELRS PWM Receiver

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

ER8 Receiver is installed with ExpressLRS as standard.

ExpressLRS is an open-source, high-performance radio control link that delivers exceptional range and low-latency communication using advanced LoRa technology. It's highly customizable and perfect for RC enthusiasts looking for reliability and efficiency.

Pair your ExpressLRS with Radiomaster's top-tier transmitters and receivers. Radiomaster products are designed to maximize the benefits of ExpressLRS, offering state-of-the-art performance for your RC adventures. Upgrade your RC experience with the unbeatable combination of ExpressLRS and Radiomaster—engineered for excellence and tailored for you.

Find out more about ExpressLRS here