HappyModel ES24TX Slim Pro ExpressLRS 2.4G TX Module For Gamepad Style Transmitter

  • $45.00

HappyModel ES24TX Slim Pro ExpressLRS 2.4G TX Module For Gamepad Style Transmitter

*Compatible with Jumper T-Pro and RadioMaster Zorro

Notice: The antenna has been changed to Happymodel Moxon 2.4GHz from Oct.14th 2021

This Slim Pro 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 drone. 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 it’s plug and play for Frsky X-lite/X-lite pro/X9 Lite , TBS Tango2, Jumper T-Pro, RadioMaster Zorro.

This Slim Pro module comes with an aluminium alloy shell and is equipped with a cooling fan that automatically works when the module is working at 250mw.
The slim pro-TX module supports a maximum power output of about 1000mw, this would be very useful for Long Range FPV.



  • Supports up to 1000mw RF power (T-lite radio and Tango2 radio need external power supply)
  • RGB LED ready
  • Cooling Fan ready
  • Open source ExpressLRS
  • Long range, low latency and High re-flashed Rates
  • Telemetry data transmission supported
  • CNC aluminum protective shell



  • Regulatory Domain: ISM2400
  • MCU: ESP32(main),ESP8285(as ESP backpack)
  • RF chip: SX1280IMLTRT
  • Frsky Lite 8pin socket
  • Frequency Range: 2400 MHz to 2500 MHz
  • Maximum receive refresh rate: 500Hz
  • Minimum receiver refresh rate: 25Hz
  • RF Output Power: ≤30dBm
  • Power supply voltage: 5v~12v
  • Weight: 50gram (without antenna)
  • Dimension: 67.5mm*30mm*20.5mm (without antenna)
  • Antenna gain: 1.87dBi
  • Firmware target: HappyModel_ES24TX_Pro_Series_2400_TX


Package Includes:

  • 1x ES24TX Slim Pro TX module
  • 1x Happymodel Moxon 2.4GHz antenna


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


ES24 Tx Slim Pro_v1.0.0

  • Since members of the development team have not received hardware samples, you can temporarily use this program target
  • Power level display not correctly in ELRS.LUA
  • 250mw(value in LUA) is equal 1000mw power output
  • We recommend to upgrade firmware once ExpressLRS development release the official firmware target