Q: What makes the MT12 different from traditional surface radios?

A: The MT12 is powered by EdgeTX, an open-source operating system. Please enjoy the unprecedented level of customization, mixing, and flight-controller-grade logic now available for cars and boats.

Q: Should I choose the ExpressLRS (ELRS) or the 4-in-1 version?

A: Please choose ELRS for ultra-low latency and extreme long-range performance. Choose the 4-in-1 version if you need to bind to existing receivers from brands like Futaba, Spektrum, or FrSky.

Q: How many channels does the MT12 support for complex models?

A: As standard, it supports 16 channels. Please note that the 4-in-1 version can be expanded up to 32 channels with an additional external module for heavy equipment or complex scale builds.

Q: How do I power the MT12, and are batteries included?

A: Batteries are not included. Please use either 2x 18650 Li-ion cells or a 2S 7.4V 5000mAh LiPo pack. The oversized battery compartment provides plenty of room for long sessions.

Q: Does the MT12 support fast charging for quick pit stops?

A: Yes, it supports QC3.0 fast charging via the USB-C port. Please find that it can pull up to 2.0A, allowing you to refill your power quickly between races.

Q: Is there an external module bay for different RF systems?

A: Yes, it features a Nano-size module bay. Please feel free to install a TBS Crossfire Nano or a RadioMaster Ranger Nano if you wish to expand your connectivity options.

Q: Can I customize the physical switches and joysticks?

A: Yes! The MT12 features customizable base switches and a 4-way joystick. Please tailor the ergonomics to suit your specific driving style or model requirements.

Q: What receiver is included with the ExpressLRS version?

A: It typically comes with the ER3C-i PWM receiver. Please note this receiver features a built-in ceramic antenna for a compact, clean installation in your vehicle.

Q: How do I update the firmware on the MT12?

A: You can update easily via the USB-C port or by using the SD card. Please keep your EdgeTX and RF firmware updated to access the latest features and model protocols.

Q: Does the MT12 provide telemetry data like battery voltage?

A: Yes, it does. Please enjoy real-time telemetry updates. For example, the included ER3C-i receiver can detect battery voltage ranging from 4.0V to 35V.

RadioMaster MT12 Surface Radio Controller

About RadioMaster MT12 Surface Radio:

Take full tactical control over your RC cars, trucks, and boats with the RadioMaster MT12 surface radio, a groundbreaking open-source surface transmitter engineered for precision, ergonomics, and extreme control. Driven by EdgeTX, the RadioMaster MT12 combines an intuitive user interface with highly customizable hardware, featuring Hall-effect sensor gimbals, customizable switch layouts, and a bright LCD screen for real-time telemetry.

Whether you choose the ultra-low latency, long-range ExpressLRS protocol with the RadioMaster MT12 ELRS version or opt for maximum multi-protocol compatibility across traditional RC vehicles with the RadioMaster MT12 4in1 edition, this controller offers unmatched versatility. Built for both competitive RC racers and scale builders, the MT12 redefines what a modern, high-performance surface radio system can achieve right out of the box.

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RadioMaster 18650 3200mAh 1S 3.7V Li-ion Battery (2pcs) for TX16S / Boxer / TX12/ Pocket / MT12 Radios
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24-Month Warranty | 2 Years Full Protection
30-Day Returns From Shipment | 7-Day No-Reason Returns
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Top highlights

Available with Built-in ExpressLRS Backpack or 4in1 MPM RF Modules
Powered by STM32F407VGT6 MCU with 1MB Flash Memory
QC3.0 Fast Charging, Supports up to 2.0A for Quick Power Refill
Oversized Battery Compartment for 2×18650 Cells or 2S 7.4V 5000mAh Pack (Not Included)
Customizable Base Switches or 4-Way Joystick with Compact Ergonomic Design

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radiomaster mt12 surface radio controller surface radio

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.

radiomaster mt12 surface radio controller operating system

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.

radiomaster mt12 surface radio controller expresslrs

ExpressLRS VERSION

ExpressLRS delivers ultra-fast response modes for instant control and precision, with a reliable, robust link quality for pushing the limits of your adventures.

radiomaster mt12 surface radio controller lrs

4in1 VERSION

One remote control all of your cars. The 4in1 internal RF system has protocols, for many popular brands of cars and receivers.

radiomaster mt12 surface radio controller features

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Specification MT12

● Item: 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)

*32 channels requires a 4in1 radio and additional 4in1 RF module along with compatible receivers

Specification ER3C-i (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

Specification R85C (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

radiomaster mt12 surface radio controller specifications

radiomaster mt12 surface radio controller layout

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radiomaster mt12 surface radio controller packing 2

Recommendations

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Reviews

w*********t
Verified

MT12 radio arrived in pristine condition. Double boxed and taped up well. Definitely trust mepsking with fpv gear.

Version：ELRSREGION：FCC
s*********o
Verified

Using the MT12 for my RC car. ELRS is so much better than the old tech. The ergonomics feel great.

Version：ELRSREGION：FCC
r************o
Verified

Finally switched to MT12 for my surface rigs. ELRS protocol is a game changer for range. Ergonomics feel way better than my old Futaba.

Version：ELRSREGION：FCC
b**********n
Verified

I’ve been using the RadioMaster MT12 Surface Radio Controller for several weeks now. Hall-effect steering wheel and trigger are incredibly smooth, precise, and consistent with zero dead zone or jitter, making every maneuver feel locked-in and responsive. The pre-installed EdgeTX system is fully cust

Version：ELRSREGION：FCC
s*********v
Verified

shipped fast. box was undamaged.support helped me set up my quad. very nice!!!!!

Version：ELRSREGION：FCC

FAQ Feel free to ask us any questions

Q: What makes the MT12 different from traditional surface radios?: A: The MT12 is powered by EdgeTX, an open-source operating system. Please enjoy the unprecedented level of customization, mixing, and flight-controller-grade logic now available for cars and boats.
Q: Should I choose the ExpressLRS (ELRS) or the 4-in-1 version?: A: Please choose ELRS for ultra-low latency and extreme long-range performance. Choose the 4-in-1 version if you need to bind to existing receivers from brands like Futaba, Spektrum, or FrSky.
Q: How many channels does the MT12 support for complex models?: A: As standard, it supports 16 channels. Please note that the 4-in-1 version can be expanded up to 32 channels with an additional external module for heavy equipment or complex scale builds.
Q: How do I power the MT12, and are batteries included?: A: Batteries are not included. Please use either 2x 18650 Li-ion cells or a 2S 7.4V 5000mAh LiPo pack. The oversized battery compartment provides plenty of room for long sessions.
Q: Does the MT12 support fast charging for quick pit stops?: A: Yes, it supports QC3.0 fast charging via the USB-C port. Please find that it can pull up to 2.0A, allowing you to refill your power quickly between races.