RadioMaster TX12 MKII – The Ultimate Compact Transmitter

The RadioMaster TX12 MKII has arrived, setting a new standard for compact transmitters! Designed for pilots who demand reliability, power, and customization in a small form factor, the TX12 MKII builds on the success of its predecessor with enhanced ergonomics, upgraded hardware, and cutting-edge software.

Why Choose the RadioMaster TX12 MKII?

RadioMaster has collaborated with the R/C community and open-source developers to deliver a feature-packed radio that meets the needs of hobbyists and professionals alike. Whether you're a drone racer, fixed-wing enthusiast, or RC car operator, the TX12 MKII offers exceptional performance and flexibility.

Key Features of the RadioMaster TX12 MKII

• ExpressLRS Backpack Support – Seamless integration with ExpressLRS for improved connectivity.

• Upgraded Processor – Now equipped with the STM32F407 for faster performance.

• USB-C QC 3.0 Charging – Quick and efficient charging for more flight time.

• Precision Hall-Effect Gimbals – Delivers superior control and smooth operation.

• EdgeTX Operating System – Preinstalled for an advanced, feature-rich experience.

• Ergonomic Design – Improved rear case with comfortable grips for long sessions.

• Refined Slider Controls – Enhanced grip on S1/S2 sliders for better precision.

• SD Card Included – Expandable storage for easy firmware updates and customizations.

• Multiple Modes – Supports M1 and M2 configurations.

RadioMaster TX12 MKII Specifications

• Product Name: TX12 Mark II Radio

• Dimensions: 170 × 159 × 108mm

• Weight: 363g

• Frequency Range: 2.400GHz – 2.480GHz

• RF Chip Options: ExpressLRS (ELRS) / CC2500

• Working Current: 320mA @ 8.4V (ELRS) / 180mA @ 8.4V (CC2500)

• Voltage Range: 6.6V – 8.4V DC

• Firmware: EdgeTX (Transmitter) / ExpressLRS (RF Module) / MPM (RF Module)

• Channels: Up to 16 (depending on the receiver)

• Display: 128 × 64 Monochrome LCD

• Gimbals: High-precision hall-effect gimbals

• External Module Compatibility: JR / FrSky / Crossfire compatible

• Upgrade Method: USB/SD Card via EdgeTX Buddy or EdgeTX Companion PC software

• USB Charging: QC3.0 USB-C

EdgeTX Operating System – Next-Level Customization

The TX12 MKII comes preinstalled with EdgeTX, an open-source operating system that continues to evolve with new features and optimizations. RadioMaster actively collaborates with the EdgeTX team to ensure users get the best possible experience while maintaining open standards for future innovation.

Get Your RadioMaster TX12 MKII Today!

With its compact size, robust build, and cutting-edge features, the RadioMaster TX12 MKII is the perfect transmitter for pilots looking for a powerful yet portable radio. Whether you're upgrading or buying your first open-source transmitter, the TX12 MKII delivers exceptional performance at an unbeatable value.

Order yours today and experience the next level of control!

Updated MCU STM32F407

We have upgraded the main processor from STM32F207 to STM32F407.

FCC Version and EU LBT Version are Available

Currently, we provide the standard FCC version and the EU LBT version. Please check the supported protocols below.

Standard FCC Version

• CC2500 (FCC) Version supports all CC2500 protocols
• ELRS (FCC) is pre-installed witn ExpressLRS ISM FW (Max power is hardware dependant)

EU LBT Version

• CC2500 LBT Version (Europe) is limited to LBT compliant protocols FrSKY X/X2 LBT & HoTT LBT
• ELRS LBT (Europe) Version is pre-installed with ExpressLRS CE EU domain LBT FW (Limited to 100mw power output)

New Hall Gimbals

With Hall Gimbals, the same chipset as the AG01, optimized hall sensor circuitry, improves center point positioning and temperature stability. 

Support USB Simulator

Improved USB-C QC 3.0 Charging

Big Battery Bay

Allows for dual 18650 or dual 21700 Li-ion cells, or 2S Lipo up to 74×60×22mm.

Expresslrs BLE JOYSTICK MODE

Allows for Bluetooth connection to PCs, tablets and phones with BLUETOOTH function to play simulators and games. 
* ELRS version only.

Upgraded Design 

Radio Overview

TX12 MKII Quick Start Guide

Package Includes

• 1 * TX12 Mark II Radio Controller
• 1 * Antenna
• 1 * USB-C Cable
• 1 * Quick Start Guide
• 1 * Sticker