RadioMaster MT12 Surface Radio Controller 4in1/ELRS
£129.99 Inc. VAT
The MT12 controller redefines the capability of a surface radio – available as 4in1 Multi-protocol or ELRS.
The RadioMaster MT12 is a pioneering open-source surface radio, and the first surface radio officially supported by EdgeTX, ExpressLRS, and the Multi-module project. Boasting 10 physical inputs and the capability to handle either 16 or 32 channels*, the MT12 is primed for a wide array of surface models, from cars and trucks to boats and beyond. Featuring extensive customizability and a versatile operating system, the MT12 stands out as a highly configurable surface radio, prepared to excel in virtually any scenario.
*32 channels requires a 4in1 radio and additional 4in1 RF module along with compatible receivers
The MT12 Radio Controller comes in two versions. A Multi-Protocol and a ELRS 2.4G version. Be sure to choose the correct RF version: The 4-in1 Multi-Protocol version supports protocols including FRSKY ACCST, Spektrum DSMX and FlySky ADHDS 2A etc. The ELRS version, supports 2.4GHz ExpressLRS protocol only. Both versions come with a nano size module bay adapter and can work with external modules i.e. a multi-protocol module, ELRS module or long range module.
Along with the radio a receiver is also included: R85C Receiver (4in1 Version) / ER3C-i 2.4GHz ELRS (ELRS Version).
Features
- Available with Built-in ExpressLRS Backpack or 4in1 MPM RF modules
- Featuring a powerful STM32F407VGT6 with 1MB Flash
- Preinstalled EdgeTX firmware
- QC3.0 fast charging supporting 2.0A MAX
- Compact design with excellent ergonomics
- Oversized battery compartment – 2 x 18650 cells or a 2s 7.4v 5000mah battery pack (Batteries not included)
- Standard Nano module compartment
- RadioMaster standardized button layout
- Rotatable antenna
- Customizable base switches or 4 way joystick included
EdgeTX Operating System
Preinstalled with EdgeTX, the MT12 has cutting edge software fit for its class-leading hardware. RadioMaster works closely with the EdgeTX team to develop new features and optimize the user experience for surface models. We will continue to contribute and support projects like EdgeTX, ensuring the concepts of open standards are carried forward.
For more information, please visit https://edgetx.org/
Available with ExpressLRS and 4in1 Version
In addition to the popular internal 4-in-1 Multi-module, the MT12 is also available with an internal 2.4GHz ExpressLRS (ELRS) module. Designed to provide reliable long-distance control, super low latency, and high refresh rates. ELRS is a revolutionary open-source protocol taking the R/C industry by storm.
ExpressLRS VERSION
ExpressLRS supports ultra-fast response modes for seat of your pants racing or super long range modes for pushing the limits of your adventures.
For more information, please visit www.expresslrs.org
4in1 VERSION
One remote control all of your cars. The 4in1 internal RF system has protocols, for many popular brands of cars and receivers.
Click here to visit the list of supported protocols
Instructional Videos
To enhance your experience with our MT12 radio, we offer a series of instructional videos on using the MT12 Surface Radio. Please click here to view more tutorial videos.
Accessories
- ER3C-i 2.4GHz ELRS PWM Receiver
- ER5C-i 2.4GHz ELRS PWM Receiver
- R85C Receiver
- ER SERIES ELRS PWM RECEIVERS
- 18650 Battery
- 21700 5000mAh Battery
RADIOMASTER MT12
- Item: RadioMaster MT12 Surface Radio
- Physical dimensions: 177.8×118.4×207.8mm
- Weight: 480 grams
- Operating frequency: 2.400GHz-2.480GHz
- Internal RF Options: 4-in-1 multi-protocol / ELRS 2.4GHz
- Supported protocols: Module dependent
- Operational current: 160mA for 4in1 / 320mA for ELRS
- Operational voltage: DC 6.6-8.4V
- Operating system: EdgeTX
- Control channels: 16 as standard, ability for expansion 32 Channels (4in1 only)
- Display: 128×64 Monochrome LCD
- Battery: 2 x 18650 cells or a 2s 7.4v 5000mah battery pack (Batteries not included)
- Charging: Built in USB-C Charging
- Firmware Upgrade method: Via USB or SD card
- Wheel and Trigger sensor: Hall-effect
- Module bay: Nano size (RadioMaster Ranger Nano Module / RadioMaster RM 4in1 module / TBS Crossfire Nano module)
ER3C-I RECEIVER (INCLUDED WITH EXPRESSLRS VERSION)
- Item: ER3C-i 2.4GHz ELRS PWM Receiver
- Power supply: DC 4.5 – 8.4V
- Antenna type: Built-in high-sensitivity ceramic antenna
- Wireless protocol: ExpressLRS 3.3.0 pre-installed
- Output channel: 3CH PWM
- Telemetry power: 10mW
- Battery voltage detection range: DC 4.0 – 35V
- Weight: 4.2 grams
- Dimensions: 26.1*18.5*13.0 mm
- Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER3C-i
R85C RECEIVER (INCLUDED WITH 4IN1 VERSION)
- Item: R85C Receiver
- Power supply: DC 4.5 – 8.4V
- Frequency range: 2400-2483.5Mhz
- Support protocol: D8/D16/SFHSS
- Output channel: 5CH PWM
- Antenna type: high-sensitivity 2.4G antenna
- Telemetry power: 100mw / 20dbm
- Weight: 5.7 grams
- Dimensions: 31.0*18.5*13.0 mm
Included:
- 1 x MT12 Surface Radio 4in1 Version / ExpressLRS Version – select as required
- 1 x R85C Receiver (4in1 Version) / ER3C-i 2.4GHz ELRS (ELRS Version)
- 1 x Dual Switch Expansion module
- 1 x 4 Way Joystick Expansion module
- 1 x Nano Adapter
- 1 x USB-C Cable
- 1 x Leather Lanyard
- 1 x Custom RadioMaster signature carry case
- 1 x 18650 Battery Tray
- 1 x Screen Protector
- 1 x Stickers
- 1 x Manual
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SHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
A confirmation email is sent once your order has been packed. If you need to amend your order, please contact us as soon as possible — once shipped, we’re unable to make changes.
We work with trusted delivery partners including Royal Mail, DHL, UPS, Fedex and Parcelforce. If you have a delivery requirement or would like to arrange collection, please get in touch.
Next Dispatch: Mon 2 Mar
Please fill in the fields below with the shipping destination details in order to calculate the shipping cost.
Shipping to the UK
- Order before the daily dispatch cutoff for same day dispatch.
- FREE delivery available on qualifying orders over £99 (under 1kg).
For small, low-value orders, Royal Mail First Class is our most economical option. Royal Mail Tracked 24 is the most popular choice, offering full tracking and flexible delivery options. For guaranteed next working day delivery, we recommend Royal Mail Special Delivery.
Royal Mail delivers to residential addresses Monday to Saturday, while courier services (including DHL) typically deliver Monday to Friday.
International Postage
- USA orders: Import duties and taxes are prepaid by us — no additional customs charges on delivery.
- Other destinations: Customs duties or import taxes may apply and are the responsibility of the recipient.
Smaller, lower-value orders may be sent via Airmail or tracked postal services. Economy road and express air courier options are available depending on destination. For faster delivery, we recommend express air courier services such as DHL Express, which typically deliver within 1–2 working days across Europe and a few working days for most other destinations.
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