SAVE 5% OFF YOUR FIRST ORDER
Use discount code FIRSTLEGENDS at checkout.
EXCLUSIVE DISCOUNTS AVAILABLE
Military, First Responders & Students
RadioMaster ER4 2.4GHz 4Ch ELRS PWM Receiver
RADIOMASTER
$17.99
Pay over time available for orders over $35.00 with Shop Pay and Sezzle.
Taxes included. Shipping calculated at checkout.
Est. delivery Friday, February 13 to Tuesday, February 17.
FREE delivery on most orders over $199.
📦 Ships from: Florida Warehouse
Learn about our Shipping and Return Policy
About this item
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.
Features
-
ER4 Receiver 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
Est. delivery Friday, February 13 to Tuesday, February 17.
FREE delivery on most orders over $199.
📦 Ships from: Florida Warehouse
Learn about our Shipping and Return Policy





