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iRangeX

iRangeX iRX4 ELRS 2.4GHz TX Module – Lite Bay (FrSky / RadioMaster / EdgeTX)

iRangeX iRX4 ELRS 2.4GHz TX Module – Lite Bay (FrSky / RadioMaster / EdgeTX)

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$39.99 USD
$39.99 USD
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iRangeX iRX4 ELRS 2.4GHz TX Module – Lite Bay (FrSky / RadioMaster / EdgeTX)

🔧 ExpressLRS Performance – Lite Bay Compatible
Upgrade your radio with fast, long-range, low-latency control using the iRangeX iRX4 ELRS TX module.

Overview

The iRangeX iRX4 ELRS 2.4GHz TX Module delivers reliable ExpressLRS performance using a proven SX1280 LoRa RF chipset and ESP32 MCU.

Designed for Lite / Nano module bay radios, this module provides smooth control, strong RF output, and access to the rapidly evolving ELRS ecosystem.

⚠️ IMPORTANT – Not a Multiprotocol Module
This is ExpressLRS only.

❌ No Spektrum / DSMX
❌ No Futaba / S-FHSS
❌ No legacy protocol support

👉 Need multi-protocol instead?
https://newenglandrc.us/products/fsk-06030022-frsky-4-in-1-multiprotocol-tx-module-mpm-for-frsky-radios-with-lite-module-bay

Key Features

  • ExpressLRS 2.4GHz system
  • Up to 500mW RF output
  • Ultra-low latency (up to 1000Hz packet rate)
  • Long-range LoRa communication
  • USB-C firmware updates
  • Open-source platform (continuous updates)

Compatibility

Fits Lite / Nano module bay radios:

  • FrSky (Lite bay models)
  • RadioMaster (Zorro, Boxer, TX16S w/ Lite adapter)
  • Jumper transmitters
  • OpenTX / EdgeTX / ETHOS

💡 Pro Tip: Great budget ELRS module for RadioMaster users needing a backup or entry setup.

Specifications

  • Model: iRX4 ELRS
  • Frequency: 2.4GHz
  • RF Power: up to 500mW
  • Voltage: 5–14V
  • Current: ≤400mA
  • Firmware: V3.3.2
  • MCU: ESP32
  • RF Chip: SX1280 / SX1281
  • Flash: 8MB
  • Interface: USB-C + Lite/Nano bay
  • Weight: 30g
  • Size: 72 × 30 × 15 mm (antenna not included)

Firmware / Configurator Note

⚠️ This module is NOT listed in ExpressLRS Configurator targets.

Use the following target when flashing:

  • DIY 2.4GHz TX
  • DIY ESP32 E28 2.4GHz TX

Setup (Quick Start)

  1. Connect module via USB-C
  2. Open ELRS Web Flasher: https://expresslrs.github.io/web-flasher/
  3. Flash firmware and set bind phrase
  4. Install LUA script via ETHOS / EdgeTX
  5. Enable External Module → ExpressLRS
  6. Configure rates and power

Usage Notes

  • Always install antenna before powering on
  • High power generates heat — use DYN power mode (recommended)
  • Bind phrase eliminates manual binding

Included

  • iRangeX iRX4 ELRS TX Module (Lite Bay)
  • T-Antenna
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