DJI FPV Goggles V2

Happymodel ES24TX Slim Pro ExpressLRS TX Module

  • Shipping Weight: 0.3kg
  • 1 Units in Stock
  • Manufactured by: Happymodel

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About this product

The Happymodel ES24TX Slim Pro ExpressLRS TX Module is designed by Happymodel and based on the open-source ExpressLRS which is a very popular low latency and high packet rate RF module for RC Airplane and FPV Racing drones. Its main hardware architecture is ESP32, ESP8285, and SX1280 RF chip.

The ES24TX Slim Pro module is a complete solution which is already pre-load the ExpressLRS firmware and is plug-and-play for Frsky X-lite/X-lite pro/X9 Lite, and TBS Tango2.

VIDEO: ExpressLRS For Your X-Lite & Tango II // HappyModel ES24TX Slim Pro // Death to D8!!


  • Cooling fan that automatically works when the module is working at 250mw.
  • Plug-and-play for Frsky X-lite/X-lite pro/X9 Lite, and TBS Tango2
  • Supports a maximum power output of about 1000mw
  • Long-range, low latency, and High re-flashed Rates
  • Telemetry data transmission supported
  • Useful for Long Range FPV
  • CNC Aluminum alloy shell
  • Open source ExpressLRS
  • RGB LED Ready


  • Dimension: 67.5mm*30mm*20.5mm (without antenna)
  • MCU: ESP32(main),ESP8285(as ESP backpack)
  • Frequency Range: 2400 MHz to 2500 MHz
  • Maximum receive refresh rate: 500Hz
  • Minimum receiver refresh rate: 25Hz
  • Weight: 50gram (without antenna)
  • Power supply voltage: 5v~12v
  • Regulatory Domain: ISM2400
  • RF Output Power: ?30dBm
  • RF chip: SX1280IMLTRT
  • Frsky Lite 8pin socket
  • Antenna gain: 1.87dBi

FIRMWARE - You can update firmware by ExpressLRS configurator or update the firmware via connecting the Wifi hot spot of the “ExpressLRS TX Module”, visit “” by browser (password:expresslrs).

  • Since members of the development team have not received hardware samples, you can temporarily use this program target: ES24 Tx Slim Pro_v1.0.0
  • We recommend upgrading firmware once ExpressLRS development releases the official firmware target.
  • 250mw(value in LUA) is equal 1000mw power output.
  • The power level may not display correctly in ELRS.LUA.


  • 1x Happymodel ES24TX Slim Pro ExpressLRS TX Module
  • 1x Happymodel 2.4GHz antenna

This product was added to our catalog on Tuesday 18 April, 2023.

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