The RadioMaster ER4 4Ch 2.4GHz ELRS PWM Receiver is designed to provide reliable and flexible control for your models. It has a small volume and drives up to 4 servos simultaneously, making it perfect for small aircraft, ships, and cars.

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Features

• ER4Receiver User Manual
• Based on the Revolutionary ExpressLRS System
• High performance, high reliability, flexible configuration, fast response speed, and ultra-long range
• 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 small aircraft, boats and cars, and more

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: 30x15x5mm
• Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER4 2400 PWM RX

Includes

• 1x RadioMaster ER4 2.4GHz 4Ch ELRS PWM Receiver
• 2x Heat-shrink tube
• 1x Voltage telemetry wire (Type-A)
• 1x User Card