RadioMaster introduces the AX12. Step into unlimited potential. AX12: Your Platform for Innovation. Where Precision Meets Possibility. Experience advanced Android performance, built-in ExpressLRS connectivity, HDMI video, powerful computing, and full app support, all working together to unlock new ways to build, and innovate. The AX12 is a brand-new tool for pilots, filmmakers, rover builders, boat captains, and creators who want the familiarity of Android combined with RadioMaster’s legendary build quality and RF performance. Features RadioMasterOS (Android 9.0): Google Play certified with full APK sideloading support. Install compatible ground station, configuration, and utility apps directly on the radio. 5.5-inch High-Brightness HD IPS Touchscreen: 1280 × 720 resolution with 1000 nits brightness for clear outdoor visibility, combined with a responsive touchscreen interface for fast and intuitive control. X5 Hall-Effect Gimbals: Contactless Hall sensors for precise, stable control with onboard stick storage. Octa-Core Processor: 8-core CPU with 4 GB RAM and 64 GB storage, optimized for radio configuration, telemetry display, supported Android apps, and multitasking. HDMI Input for Digital Video Systems: View video from compatible digital video systems directly on the AX12 screen.HDMI Output: Mirror or extend the display to a TV or projector for teaching, review, or team use. Built-in ExpressLRS (Single LR1121 Module): Supports 2.4 GHz or Sub-G 900 MHz operation with low latency, strong link performance, and Wi-Fi OTA firmware updates. MAVLink Passthrough (Wi-Fi): Enables compatible apps, such as QGroundControl and Betaflight Configurator, to be used directly on the radio for supported workflows. 16-Channel ExpressLRS Control: Full 16-channel operation with flexible channel routing. Advanced Mixing & Custom Curves: Arbitrary channel mapping, adjustable weights and offsets, Expo curves, function curves, and precise 12-point custom curves. Dual Rates & Channel Locking: Freely adjustable dual rates and channel locking. Model Templates & Management: Preset and user-defined model templates, complete model import/export, and support for custom model images. Voice Prompts & Feedback: Customizable voice prompts with text-to-speech, custom MP3 files, and condition-based announcements. Tools Lua Script Support: Run community and custom Lua scripts via the Tools menu for advanced telemetry processing and workflow customization. Control Layout: 4 × 3-position switches, 2 × 2-position latching shoulder buttons, 2 × analog scroll wheels, and a programmable 6-position button. All switches and analog controls are mappable in software. Nano External Module Bay: Nano-size external module support for compatible ExpressLRS modules. Audio Output: Built-in speaker, 3.5 mm headphone jack. Dual 21700 Battery System: Approximately 10,000 mAh total capacity for extended operating time. Connectivity & I/O: Wi-Fi, Bluetooth, USB-C charging/data. Open App Ecosystem: Install compatible Android apps. Important Android System Information For new AX12 users, the device will come with new system format. MicroG will be the replacement for Google Play Services and Aurora Store will be pre-installed as the application marketplace. For existing AX12 users, the OTA update will install a new Android system image. As part of the installation process, the Android operating system will be reset to factory defaults. The update includes the latest RadioMasterAX application (June 11 2026 release), but all previously installed Android applications and Android settings will be removed. Model data can be restored by following the backup procedure below. Update Procedure Export all model data from the RadioMasterAX application and save the backup file to a computer. Perform the Android system update: * Open Settings * Go to System → Advanced → System Update * Select Check for Updates * Install RADIOMASTER_OTA_202606291403 During the update, the system will reboot three times. This is normal. Once the update is complete, copy the model backup file back into the Android Download folder. Import the backup within the RadioMasterAX application to restore all model data. Powerful Processing An octa-core processor, 4 GB of RAM, and 64 GB of storage deliver smooth performance for control tasks, telemetry viewing, supported ground station apps, and utilities. The 5.5-inch HD IPS touchscreen (1280 × 720) delivers sharp visuals and 1000 nits brightness for excellent visibility even in direct sunlight. The responsive touchscreen interface makes navigating menus and adjusting settings quick and intuitive in the field. At its core, the AX12 remains a full- featured RadioMaster transmitter. It supports full 16-channel ExpressLRS control with advanced mixing, arbitrary channel mapping, custom curves (including 12-point custom curves), adjustable dual rates, and channel locking. Preset and user- defined model templates, full model import/export, custom model images, configurable voice prompts, and support for Tools Lua scripts provide deep flexibility for advanced setups. The built- in ExpressLRS LR 1121 module supports 2. 2.4GHz or Sub-G 900MHz operation with low latency and strong link performance, and supports Wi-Fi OTA firmware updates for the internal RF module. MAVLink passthrough enables compatible apps, such as QGroundControl and Betaflight Configurator, to be used directly on the radio for supported workflows. HDMI input supports video from compatible digital video systems on the AX 12 display, while HDMI output mirrors the screen to an external monitor or projector for teaching, review, or team use. Using the DJI Fly app and a simple USB-C OTG connection, the AX12 can display the live video feed from DJI goggles directly on its built-in HD screen. This enables passengers, spotters, or instructors to view the flight in real time while the pilot continues flying with goggles. The mirrored display can also serve as a handy backup screen for safety or for recording or live-streaming the flight feed. Specifications Item: AX12 Remote Controller Working Current: 1.10A (at max output power) Frequency: 2.400GHz OR Sub-G 900MHz Internal RF: ExpressLRS 2.4GHz / Sub-G 900MHz Supported Protocols: Express-LRS Channels: Up to 16 (depending on receiver) Display: 5.5" HD Touchscreen (1280×720) / 1,000 nits brightness Device Firmware: Android 9.0 (can not be updated) Radio Firmware: RadioMaster OS Charging: USB Power Delivery (PD) compatible power supply is required for charging Gimbals: High-precision X5 hall effect gimbal Gimbal Sticks: Removable and Storable Internal Storage: Integrated 64GB of onboard flash memory External Module Support: Nano module bay Battery: Dual 3.7V 21700 lithium batteries (built-in) Firmware Upgrade: Online automatic updates via Wi-Fi Dimensions: 171*168*73mm Weight: 640g Associated Products AG01 NANO CNC Hall Gimbals Includes 1 x AX12 Radio Controller 1 x AX12 Signature Carry Case 1 x Type-A to Type-C USB Cable 1 x Type-C to Type-C USB Cable 1 x Screen Protector 1 x 1.5mm Hex Wrench 4 x Low Tension Gimbals Springs 2 x AX12 Gimbal Dust Cover 1 x RadioMaster Sticker Set 1 x AX12 Manual 1 x Inventory Card Browse More Browse All ELRS Transmitters Browse All Radiomaster Transmitters Browse All Transmitters
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