RadioMaster TX12 MKII ExpressLRS EdgeTX Transmitter
The RadioMaster TX12 MKII is a 16-channel ExpressLRS EdgeTX transmitter featuring upgraded STM32F407 processing, precision hall-effect gimbals, and integrated 2.4GHz ELRS support, designed for FPV drone pilots and RC modelers requiring open-source flexibility.
Features
- Integrated 2.4GHz ExpressLRS (ELRS) RF system for long-range, low-latency control.
- Precision hall-effect gimbals provide smooth, accurate, and wear-free stick input.
- Upgraded STM32F407 mainboard with EdgeTX operating system pre-installed.
- USB-C with QC 3.0 fast charging for the internal 2S Li-ion battery (6.6-8.4V).
- 128×64 monochrome LCD display, SD card slot, and programmable M1/M2 switches.
Out of stock
The RadioMaster TX12 MKII represents a significant hardware revision of the popular open-source transmitter platform. Its core upgrade is the shift from an STM32F207 to a more powerful STM32F407 microcontroller, providing greater processing headroom for complex EdgeTX scripts, telemetry, and future firmware features. The internal RF system is now dedicated to the ExpressLRS protocol, offering pilots a high-performance, low-latency link ideal for FPV racing and long-range exploration without requiring an external module.
Ergonomics and build quality are enhanced with a revised rear case featuring improved grip textures and a more comfortable S1/S2 slider placement. The inclusion of high-precision hall-effect gimbals as standard ensures precise, repeatable control inputs with no potentiometer wear over time. The system is powered by a 2S Li-ion battery pack, compatible with USB-C Quick Charge 3.0 for rapid replenishment between flying sessions.
Additional Information
| Weight | 0.363 kg |
|---|---|
| Dimensions | 20 × 18 × 10 cm |





















