Radio Transmitter RadioMaster TX12 ELRS 2.4G 16CH (M2)

The RadioMaster TX12 Mark II is a compact, open-source radio controller engineered for pilots looking for a powerful and reliable device. Representing an upgraded version of the original TX12, it features enhanced ergonomics, updated hardware internals, and optimized software integration.

Features

Improved Ergonomics: Redesigned rear case styling configured with comfortable hand grips to increase tactile comfort during prolonged use.

Upgraded Hardware: Driven by an updated STM32F407 mainboard architecture delivering enhanced processing performance and speed.

Precision Hall Gimbals: Factory-equipped with high-precision Hall-effect sensor gimbals ensuring frictionless control scaling and long-term durability.

ExpressLRS Backpack Support: Enables seamless wireless configuration across ExpressLRS (ELRS) modules, with the internal ELRS version supporting Bluetooth connectivity for plug-and-play simulator integration.

Enhanced Power Delivery: Optimised power circuits utilizing a modern USB-C interface with full support for QC3.0 high-speed charging.

EdgeTX Operating System: Shipped with pre-installed EdgeTX firmware for comprehensive model customization, flexible telemetry mixing, and open-source updates.

External Module Expansion: Built-in standard JR-style rear module bay providing cross-compatibility with external FrSky, JR, or Crossfire micro-modules.

Dual Stick Configurations: Universally supports software toggle adjustments between Mode 1 (M1) and Mode 2 (M2) stick preferences.

Specifications

Model: TX12 Mark II Radio Controller

Dimensions: 170 mm × 159 mm × 108 mm

Weight: 363 g

Operating Frequency: 2.400 GHz – 2.480 GHz

Internal RF Chip Options: ExpressLRS (ELRS) or CC2500 Multi-Protocol

Operating Current: 320mA at 8.4V (ELRS) / 180mA at 8.4V (CC2500)

Input Voltage Range: 6.6 V – 8.4 V DC

System Firmware: EdgeTX (Transmitter Architecture)

RF Module Firmware: ExpressLRS (ELRS Variant) / Multi-Protocol Module (CC2500 Variant)

Number of Channels: Up to 16 channels (receiver dependent)

Display Type: 128 × 64 Monochrome Backlit LCD Screen

Gimbals: Contactless Hall-Effect Sensors

Expansion Compartment: Standard JR/FrSky/Crossfire Compatible Bay

Charging Port: QC3.0 USB-C

Firmware Upgrades: Via USB interface, included MicroSD card, EdgeTX Buddy online tool, or EdgeTX Companion PC software

MicroSD Card: Included in standard layout

Note: Batteries are not included in the standard package.

Regional Firmware Variations

Standard FCC Version

ELRS (FCC): Pre-loaded with ExpressLRS ISM firmware with max power output governed by baseline hardware capability.

CC2500 (FCC): Supports all standard individual CC2500 Multi-Protocol module protocols.

EU LBT Version

ELRS LBT: Pre-loaded with ExpressLRS CE EU domain LBT compliance rules, locking maximum output power to 100 mW.

CC2500 LBT: Restricted strictly to LBT-compliant protocols including FrSky X/X2 LBT and HoTT LBT.

Package

1 x RadioMaster TX12 Mark II Radio Controller (ELRS M2 FCC Variant)

1 x 2.4GHz High-Gain Antenna

1 x USB-C Cable

1 x 18650 Battery Tray

1 x MicroSD Card (Pre-installed)

1 x User Manual