ER4 2.4GHz ELRS PWM Receiver

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 ER4 PWM receiver can drive 4 servos simultaneously. Designed for a very small volume, it is suitable for any application that requires a small or lightweight receiver while still providing full range.

Features

• Based on the Revolutionary ExpressLRS System
• High performance, high reliability, flexible configuration, low latency, and strong link quality
• Support 4 PWM Channel
• 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 15 cm High Sensitivity Antenna
• For any application that requires a small or lightweight receiver
• Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS

Specification

• Item: ER4 2.4GHz ELRS PWM Receiver
• Power supply: DC 4.5 – 8.4V
• Antenna type: 15cm high sensitivity antenna
• Wireless protocol: ExpressLRS 3.3.0 pre-installed
• Output channel: 4CH PWM
• Telemetry power: 10mw
• Battery voltage detection range: DC 4.0- 35V
• Weight: 3.0 grams
• Dimensions: 30*15*5mm
• Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER4 2.4GHz PWM 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 * ER4 2.4GHz ELRS PWM Receiver
• 2 * Heat-shrink tube
• 1 * Voltage telemetry wire (Type-A)
• 1 * User Card