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RadioMaster ER4 Radio Receiver product photo.
ER4 2.4GHz ELRS PWM Receiver, back view
ER4 2.4GHz ELRS PWM Receiver, isometric view

RadioMaster ER4 2.4GHz 4Ch ExpressLRS PWM Receiver

by RadioMaster
4.56 out of 5
(9 customer reviews)

The ER4 PWM receiver can drive 4 servos simultaneously. It’s small size makes it suitable for small aircraft models, ship models, car models and others that require a small or lightweight receiver while still providing full range.

$31.99

Hurry! Only 3 left in stock

Ships from our Tauranga warehouse
SKU: E1146 Categories: , ,

Description

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.

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

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 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

Additional information

Brand

Protocol

9 reviews for RadioMaster ER4 2.4GHz 4Ch ExpressLRS PWM Receiver

  1. 5 out of 5

    Anonymous (verified owner) –

  2. 5 out of 5

    Graham (verified owner) –

  3. 5 out of 5

    James P. (verified owner) –

    Excellent

  4. 5 out of 5

    Graham (verified owner) –

  5. 5 out of 5

    Colin Teasdale (verified owner) –

    Took me a while to figure out the sbus part but its actually a lot easier once I stopped looking for the complicated answer.:)
    Best value 4 channel rec around

  6. 1 out of 5

    Stephen Robertson (verified owner) –

    Very small . It will be going into one of my planes . I will buy more of these

  7. 5 out of 5

    steveroby (verified owner) –

    My rating above should have been 5 stars , not 1 . Sorry

  8. 5 out of 5

    Shaun S. (verified owner) –

    Great little receiver. Found it easy to update.

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