Happymodel ES24TX Pro 2.4GHz ExpressLRS TX is an extended transmitter module for large radio trays. The module is compatible with radios running OpenTX or EdgeTX firmware. ExpressLRS (abbreviated as ELRS) is an open-source project, and transmitter and receiver modules are manufactured by multiple producers. Happymodel is one of them. ELRS is currently one of the most advanced RC transmissions. It offers a reliable link over long distances, a high refresh rate of up to 500Hz, adjustable power, updates via wifi, and more. ELRS at 2.4GHz outperforms conventional RC systems on the same frequency in every respect while maintaining short antennas.
ELRS has strong community support. However, it is an open system that is rapidly evolving and changing. You can find all the information about ELRS here.
The Happymodel ELRS module features an internal aluminum heatsink and active cooling fan. The module's status is indicated by an RGB LED. Thanks to the integrated ESP8258 chip, the module supports communication with the ELRS RX Backpack module. The package already includes a directional Moxon antenna.