SKU: 58955044743

RadioMaster ER4 2.4GHz ELRS PWM Receiver

Sale price$18.89 Regular price$20.99
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 22 - Sep 27

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Description

RadioMaster ER4 2.4GHz ELRS PWM ReceiverThe RadioMaster ER series of PWM receivers are based on the revolutionary ExpressLRS system. It offers high performance, high reliability, flexible configuration, fast response speed and ultra long range bringing you brand new experience with your hobby. The ER4 PWM receiver can drive 4 servos simultaneously. Designed with a very small volume, it is suitable for small aircraft models, ship models, car models and other models that require a small or

The RadioMaster ER series of PWM receivers are based on the revolutionary ExpressLRS system. It offers high performance, high reliability, flexible configuration, fast response speed and ultra-long range bringing you brand new experience with your hobby.

The ER4 PWM receiver can drive 4 servos simultaneously. Designed with a very small volume, it is suitable for small aircraft models, ship models, car models and other models that require a small or lightweight receiver while still providing full range.

Check out all our ExpressLRS ProductsReceivers, and the rest of our RadioMaster Products!

 


 

Features:

  • 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

 

Specifications:

  • Item: ER4 2.4GHz ELRS PWM Receiver
  • Power supply: DC 4.5 - 8.4V
  • Antenna type: 15cm high sensitivity antenna
  • Wireless protocol: ExpressLRS 3.2 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 2400 PWM RX

 

Package Includes:

  • 1 * ER4 2.4GHz ELRS PWM Receiver
  • 2 * Heat-shrink tube
  • 1 * Voltage telemetry wire (Type-A)
  • 1 * User Card
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 58955044743

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    4.3 ★★★★★
    Based on 17 reviews
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    Carla Henson
    Pawtucket, US
    ★★★★★ 5
    Great piece
    This is exactly what I needed! Easy assembly! Very well made! Very good value for the price
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 7, 2025
    E
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    Excelente
    Port Orchard, US
    ★★★★★ 5
    Excelente calidad
    Color: Black, Size: Standard - 4 Panel
    Excelente
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    Reviewed in the United States on June 1, 2026
    D
    Verified Purchase
    DCP
    West Palm Beach, US
    ★★★★★ 5
    Great value, perfect for our infant room!
    Color: Black, Size: Standard - 4 Panel
    Great product, sturdy design and easy to build! It is a fairly light weight item, which aids in the maneuverability of the divider. The color was as described and is dark enough to block the light from our sleeping infants! I do love that you are able to see through the slats and see the child sleeping- if you are looking for something with MORE privacy, this is not it. It has great coverage area and is dark and a wonderful value for the price, however, you are able to see through the areas where each panel connects!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 18, 2025
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    Verified Purchase
    Tammy Lee Morris
    Phoenix, US
    ★★★★★ 1
    Don’t waste your money or time!
    Color: White, Size: Standard - 4 Panel
    Don’t waste your money. The instructions make no sense and the metal poles are either sized wrong for the product or screw holes are incorrectly placed, but no two poles matched in size and placement making it impossible to put this together without the panels being warped. No matter how I tried to switch the poles to see if I had them wrong, they always turned out warped and incorrectly fit. I finally gave up and threw everything out - I wasted $50 on this junk and because I didn’t try to put it together immediately after I bought it, it is way too late for a refund. Lesson learned!
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    Reviewed in the United States on October 1, 2025
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    Verified Purchase
    Edward Hugee
    Houston, US
    ★★★★★ 3
    Sturdiness
    Color: Black, Size: Standard - 4 Panel
    Not so sturdy. It worked well for its intended job, but, it has to be secured to the floor for long term use.
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    Reviewed in the United States on March 30, 2026

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