Radio systems and receivers: choosing a reliable control link
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
TX15 Radio Controller (ELRS / M2)
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Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
TX15 Radio Controller (ELRS / M2) is a RadioMaster product intended for pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models. This page presents the practical buying information in one place: compatibility, SKU, variants, radio protocol, use case and technical details.
The content is written for customer decision-making through RC-MODEL, without supplier prices or outbound purchase routes.
Key Advantages
- Organized for pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models.
- Part of the TX15 transmitter platform.
- RF/protocol context: ExpressLRS / ELRS, 2.4GHz, 915MHz / 868MHz, EdgeTX.
- Compatibility note: Compatible with RadioMaster TX15 platform where applicable.
- Multiple variants are documented for easier matching to the required setup.
- Includes local product imagery and structured specifications for customer comparison.
Core Specifications
- Product Code: HP0157.0110-GRY-A
- Product Family: TX15 transmitter platform
- Protocol / RF: ExpressLRS / ELRS, 2.4GHz, 915MHz / 868MHz, EdgeTX
- Channels: Max 16 channels (Receiver dependent)
- Compatibility: Compatible with RadioMaster TX15 platform where applicable
- Available Variants: Iron Grey / ELRS / FCC; Iron Grey / ELRS / LBT; Iceberg Blue / ELRS / FCC; Iceberg Blue / ELRS / LBT; Mint Mist / ELRS / FCC; Mint Mist / ELRS / LBT; Frost White / ELRS / FCC; Frost White / ELRS / LBT; Lemon Twist Yellow / ELRS / FCC; Lemon Twist Yellow / ELR...
- Battery: 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included)
- Frequency: 2.400GHz OR Sub-G 900MHz
- Weight: 605g (without battery)
- Step into the future. TX15: The Future Is Here, One Step Ahead.
- 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
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
How to bind an RC transmitter and receiver
A practical binding guide for matching protocol, bind mode, receiver power, model memory, control checks and common binding mistakes.
How to set failsafe correctly on an RC aircraft
Failsafe setup for electric and fuel aircraft: throttle behavior, receiver signal loss, switch positions and safe verification before flight.
How to set Dual Rates and Expo on an RC transmitter
Make an aircraft calmer for beginners by setting low rates, high rates and expo without hiding mechanical setup problems.
How to perform the first test flight of an RC aircraft
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | RadioMaster |
| Brand | RadioMaster |
| Product Code | HP0157.0110-GRY-A |
| All Variant SKUs | HP0157.0110-GRY-A, HP0157.0110-GRY-LBT-A, HP0157.0110-BLU-A, HP0157.0110-BLU-LBT-A, HP0157.0110-GRN-A, HP0157.0110-GRN-LBT-A, HP0157.0110-WHT-A, HP0157.0110-WHT-LBT-A, HP0157.0110-YEL-A, HP0157.0110-YEL-LBT-A, HP0157.0110-PNK-A, HP0157.0110-PNK-LBT-A |
| Available Variants | Iron Grey / ELRS / FCC; Iron Grey / ELRS / LBT; Iceberg Blue / ELRS / FCC; Iceberg Blue / ELRS / LBT; Mint Mist / ELRS / FCC; Mint Mist / ELRS / LBT; Frost White / ELRS / FCC; Frost White / ELRS / LBT; Lemon Twist Yellow / ELRS / FCC; Lemon Twist Yellow / ELR... |
| Product Type | TX15 Radio |
| Product Family | TX15 transmitter platform |
| Application | pilots who need a capable programmable transmitter for aircraft, helicopters, FPV, gliders or surface models |
| Item | TX15 Radio Controller |
| Gimbal Sticks | M4 |
| Weight | 605g (without battery) |
| Compatibility | Compatible with RadioMaster TX15 platform where applicable |
| Protocol / RF | ExpressLRS / ELRS, 2.4GHz, 915MHz / 868MHz, EdgeTX |
| Frequency | 2.400GHz OR Sub-G 900MHz |
| Internal RF | ELRS 2.4GHz / Sub-G 900MHz |
| Supported Protocols | Express-LRS |
| Channels | Max 16 channels (Receiver dependent) |
| Display | 3.5-inch IPS touchscreen (480 x 320 resolution) |
| Radio Firmware | EdgeTX (Transmitter) (requires version 3.0.0 or later) |
| Gimbals | V5.0 Hall sensor gimbals (standard) |
| Battery | 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included) |
| Size | 178*168*81mm |
| Touchscreen Display | 3.5-inch, 480 x 320 IPS touchscreen with vivid colors and sharp detail. |
| Precision Gimbals | V5.0 Hall sensor gimbals |
| Smart Balance Battery Circuit | Maximizes battery efficiency and optimizes runtime. |
| Built-in Microphone | For future feature expansion.; Yes (Future expansion) |
| Built-in Motion Sensor | Trigger switches, pan/tilt cameras, or telemetry callouts simply by tilting your radio.; Yes (ICM-42607-C) |
| Storage | Built-in flash memory with external SD card support. |
| Voltage Range | 6.6 - 8.4V DC |
| Built-in Flash | Yes |
| Upgrade Method | USB-C (UF2) |
| Module Bay | JR-compatible module bay for additional modules |
| Cooling Fan | Yes |
| Current | 875mA at max power output |
| Connectivity | USB-C |
| Step into the future. TX15 | The Future Is Here, One Step Ahead. |
| Blazing-Fast Performance | The STM32 H7 chip powers our fastest radio ever. |
| Built-in ExpressLRS | 2.4GHz / Sub-G 900MHz ExpressLRS integration for reliable and long-range control. |
| 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. |
| 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 |
| Transmitter Module | Built-in ELRS |
| MicroSD card (Not included) | 32GB/FAT32 (Inserting a MicroSD card will disable the onboard flash) |
| Antenna Gain | 2dB (transmit power adjustable) |
| Module Firmware | ExpressLRS |
Tags: RadioMaster, HP0157.0110-GRY-A, TX15 Radio, RC radio