Happymodel ExpressLRS 2.4GHz Nano 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 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.

This Slim Pro module comes with an aluminum 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 (X-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

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)

Package includes:
ES24TX Slim Pro TX module *1
24TX80 antenna *1

Customer Reviews

Based on 2 reviews
Rudy Ortiz
Happy Model ES24TX

Using on my FrSky X-Lite so far it’s working perfectly. Wish it came with a moxon antenna but for the price I can’t complain. Very happy with my purchase.

Edward Pruner
Wrong product

I ordered this thinking it was the t lite module pictured in the images but I received the x lite tango 2 slim pro module. Please correct the product description. The module should work with external bay add on but cannot use its full power as the t lite proprietary comes with a separate power board.