RadioMaster TX15 Radio Controller (ELRS / M2) Iron Grey

RadioMaster continues to redefine the open-source remote control landscape. After years of collaboration with our open-source partners and users, we are proud to introduce the TX15. Driven by the high-performance STM32 H7 chip, it’s the powerhouse behind our fastest radio ever — enabling ultra-smooth EdgeTX control, instant model switching, and lightning-quick script execution. With flash storage and MicroSD card expansion, you’ll have virtually unlimited space for models, scripts, sounds, and themes.

The TX15 features an LR1121 Semtech transceiver, supporting both 2.4GHz and 900MHz ExpressLRS (ELRS) for exceptional low-latency performance. Whether you’re using it daily or in challenging RF environments, the TX15 is engineered to deliver reliable results. A smart balance battery circuit optimizes runtime, while the compact, foldable antenna design enhances portability and maintains strong signal quality. The built-in gyro with TiltX/TiltY functions unlocks advanced control options, allowing you to trigger switches, adjust accessories, or activate telemetry features with a simple tilt of your radio.
This versatile module combines durability, ease of use, and innovative features, making it an outstanding choice for demanding setups.

Experience clear visuals on the 3.5-inch IPS touchscreen with 262k color resolution and 600 nits brightness, visible in sunlight. The TX15 Standard features V5.0 hall sensor gimbals in six vibrant colors. It’s advanced cooling, a USB-C port for charging, SIM connectivity, firmware updates, and high-speed memory access ensure reliable performance. We’ve included additional switches so you can swap out the shoulder buttons with either a momentary or two-position latching switch—perfect if you prefer a traditional switch over a button. Want a premium upgrade? Check out the TX15 MAX.

Step into the future. TX15: The Future Is Here, One Step Ahead.

Features:

• Blazing-Fast Performance: The STM32 H7 chip powers our fastest radio ever.
• Touchscreen Display: 3.5-inch, 480 x 320 IPS touchscreen with vivid colors and sharp detail.
• Precision Gimbals: V5.0 Hall sensor gimbals
• Built-in ExpressLRS: 2.4GHz / Sub-G 900MHz ExpressLRS integration for reliable and long-range control.
• Smart Balance Battery Circuit: Maximizes battery efficiency and optimizes runtime.
• Powerful, Efficient Cooling System: Low noise, high output fans and an aluminium heat sink keep your radio cool even on the hottest days.
• Foldable Antenna: Compact and easy to store without compromising signal strength.
• Built-in Microphone: For future feature expansion.
• Built-in Motion Sensor: Trigger switches, pan/tilt cameras, or telemetry callouts simply by tilting your radio.
• Storage:  Built-in flash memory with external SD card support.
• Interchangeable Shoulder Switches: Customize your controls to match your style.
• Optional colors: Iron Grey / Frost White / Iceberg Blue / Mint Mist / Lemon Twist Yellow / Hot Pink

Specifications:

• Item: TX15 Radio Controller
• Size: 178*168*81mm
• Weight: 605g (without battery)
• Frequency: 2.400GHz OR Sub-G 900MHz
• Internal RF: ELRS 2.4GHz / Sub-G 900MHz
• Supported Protocols: Express-LRS
• Cooling Fan: Yes
• Transmitter Module: Built-in ELRS
• Built-in Flash: Yes
• Built-in Microphone: Yes (Future expansion)
• Built-in Motion Sensor: Yes (ICM-42607-C)
• MicroSD card (Not included): 32GB/FAT32 (Inserting a MicroSD card will disable the onboard flash)
• Antenna Gain: 2dB (transmit power adjustable)
• Current: 875mA at max power output
• Voltage Range: 6.6 – 8.4V DC
• Radio Firmware: EdgeTX (Transmitter) (requires version 3.0.0 or later)
• Module Firmware: ExpressLRS
• Channels: Max 16 channels (Receiver dependent)
• Display: 3.5-inch IPS touchscreen (480 x 320 resolution)
• Battery: 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included)
• Connectivity: USB-C
• Gimbals: V5.0 Hall sensor gimbals (standard)
• Gimbal Sticks: M4
• Upgrade Method: USB-C (UF2)
• Module Bay: JR-compatible module bay for additional modules

Package Includes:

• 1 * TX15 Radio Controller
• 1 * Signature Carry Case
• 1 * Short 2-position Latching Shoulder Toggle Switch Assembly
• 1 * Short 2-position Momentary Shoulder Toggle Switch Assembly
• 1 * 18650 Battery Tray
• 1 * USB-C Cable
• 1 * Screen Protector
• 1 * 1.5mm Hex Wrench
• 4 * High Tension Gimbals Springs
• 2 * Gimbal Stick Set Screw
• 1 * Stickers Set
• 1 * User Manual
• 1 * Inventory Card

TX15 is installed with ExpressLRS as standard.

ExpressLRS is an open-source, high-performance radio control link that delivers exceptional range and low-latency communication using advanced LoRa technology. It’s highly customizable and perfect for RC enthusiasts looking for reliability and efficiency.

Pair your ExpressLRS with Radiomaster’s top-tier transmitters and receivers. Radiomaster products are designed to maximize the benefits of ExpressLRS, offering state-of-the-art performance for your RC adventures. Upgrade your RC experience with the unbeatable combination of ExpressLRS and Radiomaster—engineered for excellence and tailored for you.

TX15 is now compatible with mLRS!

The mLRS project offers an open-source, high-performance radio system based on LoRa technology, operating at 2.4 GHz, 915/868 MHz, and 433 MHz/70 cm, designed to deliver a secure, reliable, and robust link under any conditions.
mLRS is designed with MAVLink and MSP optimization in mind, while also providing a transparent serial link, making it suitable for a wide range of applications. Its design ensures the strongest possible signal integrity while maintaining a relatively high data rate, balancing performance and reliability without compromise.