Happymodel 2.4g ExpressLRS ES24TX Slim Pro Nano TX module


In stock


Happymodel 2.4g ExpressLRS ES24TX Slim Pro Nano TX module

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. 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 its plug and play for Frsky X-lite/X-lite pro/X9 Lite, TBS Tango2.

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.
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Happymodel 2.4g ExpressLRS ES24TX Slim Pro Nano TX module


  • Supports up to 1000mw RF power (T-lite radio and Tango2 radio need external power supply)
  • Built-in cooling fan
  • Open source ExpressLRS
  • Long-range, low latency and High re-flashed Rates
  • Telemetry data transmission supported
  • CNC aluminium 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: 1.87dB


  • 1x ES24TX Slim Pro TX module
  • 1x 24TX80 antenna

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)


  • 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.

happymodel 2 4g expresslrs es24tx slim pro tx module for x lite tango2 mantisfpv

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