SKU: 9805543320

BetaFPV ELRS Micro TX V2 Module - 915MHz

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Description

BetaFPV ELRS Micro TX V2 Module - 915MHzThe Micro TX V2 Module boasts a Max 2W RF output of up to 200Hz packet rate, and an efficient cooling system with an integrated TCXO, enlarged airflow vents, and a high speed 2507 Axial Fan. It's designed for superior link stability and anti interference capabilities. Flashing your firmware with ease using the 5D button and OLED display. It's an ideal choice for pilots seeking a reliable signal under long range flight. Check out our BetaFPV ELRS

The Micro TX V2 Module boasts a Max 2W RF output of up to 200Hz packet rate, and an efficient cooling system with an integrated TCXO, enlarged airflow vents, and a high-speed 2507 Axial Fan. It's designed for superior link stability and anti-interference capabilities. Flashing your firmware with ease using the 5D button and OLED display. It's an ideal choice for pilots seeking a reliable signal under long-range flight.

Check out our BetaFPV ELRS Collection and the rest of our BetaFPV Products!

Bullet Point

  • With the 2000mW Max RF Power, enjoy stronger signals, and longer transmission distances.
  • Featuring a built-in TCXO, CNC aluminum alloy heat sink, enlarged airflow vents, and a high-speed 2507 Axial Fan, the upgraded cooling system ensures stable link performance.
  • Say goodbye to multiple steps of PID switches to flash the firmware, enjoying a fluent flashing experience easily with one 5D button and an OLED display.
  • Backpack function aims to allow wireless communication between ExpressLRS, and other FPV-related devices for command and control, or for querying config.

Specification

  • Item: BETAFPV Micro TX V2 Module | ELRS 915/868MHz
  • Weight: 54.8g
  • Color: Black
  • Antenna Connector: SMA-KE
  • RF Power: 10mW/25mW/50mW/100mW/250mW/500mW/1000mW/2000mW
  • Packet Rate: 25Hz/50Hz/100Hz/100Hz Full/200Hz/D50
  • Frequency Band: 915MHz FCC/868MHz EU
  • Backpack: Support
  • Input Voltage: 7V~13V DC 
  • Rated Current: 10V,1A@2000mW,200Hz, 1:128
  • USB Port: Type-C
  • Fan Voltage: 5V
  • Default Firmware Version: ExpressLRS V3.4.3
  • Target Name: BETAFPV Micro 900MHz TX V2

The Micro TX V2 Module is an upgrade from the ELRS Micro TX Module. Below is a comparison of key specifications.


 Micro TX V2 Micro TX
Max RF Power 2W 1W/500mW
Frequency Band 900MHz 900MHz/2.4GHz
Fan 2507 12000RPM 2510 8000RPM
RF Chip SX1276 SX128X/SX1276
External Power Supply Supported 5-25V Supported 5-12V

Diagram

BETAFPV Micro TX V2 module is compatible with the radio transmitter which has the micro module bay (AKA JR/SLIM module bay, e.g. Frsky Taranis X9D, TBS Mambo). Below is the diagram.

Note: Please assemble the antenna before powering on. Otherwise, the TX module's PA chip will be permanently damaged. 

2W RF Power

The Micro TX V2 Module boasts a powerful 2000mW transmission power. Featuring a built-in TCXO (temperature-compensated crystal oscillator). it can withstand extreme temperatures with no fear of heat and cold, continuously outputting accurate frequency for eliminating signal interference, achieving a reliable long-range flight. Experience stronger signals, longer transmission distances, and an expanded radio transmitter range. With these options, pilots can explore and connect with greater freedom in wireless communication.

Note: For optimal safety and performance when operating at 2W high power, please use the XT30 connector with an external power supply configured for 2-4S. This setup supports voltages ranging from 5V to 25V.

Using it together with the ELRS Receivers ensures a super stable yet strong radio link for pilots to fly in any environment that requires extremely stable signals and low latency, including FPV racing, long-range flight, and cinematic shooting. It gives pilots an aggressive but stable flight experience.

Cooling System Iteration 

Engineered for precision and performance, this Micro TX V2 Module boasts a robust, CNC aluminum alloy heat sink design. Its cooling system includes enlarged airflow vents and an optimized fan layout, both internally and externally. Powered by a high-speed 2507 Axial Fan, it masterfully channels heat away, even under the most demanding power outputs. This ensures not only stable link performance but also the ultimate in temperature control, making drones easily cope with high loads and soar stably.

Moxon Antenna V2

BETAFPV Moxon Antenna V2 has been very popular with pilots since its release. By taking the features of Moxon and adding some new ones, the coaxial cable of Moxon V2 is soldered to the antenna, decreasing the signal transmission loss for better performance. Besides, the soldered joint is protected by an injection molding cover, making it a whole unit and very easy to install.

OLED and Button

The Intuitive Visualize Setting feature on the OLED, allows you to see and adjust your TX settings in real time and ensures that you're always in the know and in control. Personalize capabilities with the 5D Button feature, tailoring to your unique preferences and needs, and streamline your drone's operations, making it easier than ever to execute complex maneuvers and commands with just a touch.

There is a 5D button on the Micro TX V2 Module. Below is the basic operation of the button and OLED. Long Press: Unlock and enter the menu page, or apply current settings on the menu page. Up/Down: Move to the last/next row. Left/Right: Change the value of this row. Short Press: Enable binding status or WiFi upgrade status. 

Note: When the RF TX module enters WIFI Upgrade status, the button will be invalid. Please re-power the RF TX module after the firmware update via WIFI.

Streamline Steps, Abundant function

Say goodbye to multiple steps of PID switches to flash the firmware, enjoying a fluent flashing experience easily with one 5D button. Backpack function, some of the ExpressLRS TX modules include an additional ESP8285 chip, which lets us communicate wirelessly with other ESP8285-enabled devices using a protocol called espnow. We call this chip the "TX-Backpack". The TX-Backpack aims to allow wireless communication between ExpressLRS, and other FPV-related devices for command and control, or for querying config.

https://github.com/ExpressLRS/Backpack/wiki

Combination with Most Radio TX

The Micro TX V2 Module supports the Micro module bay(AKA JR/SLIM module bay), which is compatible with most ELRS receivers and all OpenTX controllers and some no-OpenTX remote controls like T161Z, T16SZ, T18SZ, ET16, etc. on the market.

ELRS Series

The ExpressLRS Series expands its lineup with the addition of the Micro TX V2 Module. To achieve exceptional link quality. BETAFPV takes the flying experience to new heights by introducing ELRS links that offer long-range capabilities, low latency, and high refresh rates in a radio control system.

    Basic Configuration

    The Micro TX V2 Module defaults to receive signals in the Crossfire serial data protocol (CRSF), so the TX module interface of the remote control needs to support CRSF signal output. Taking the EdgeTX remote control system as an example, the following explains how to configure the remote control to output CRSF signals and control the TX module using Lua scripts.

    CRSF Protocol: In the EdgeTX system, select "MODEL SEL" and enter the "SETUP" interface. In this interface, turn off Internal RF (set to "OFF"), turn on External RF, and set the mode to CRSF. Connect the module correctly and then the module will function properly. 

    Lua Script: Lua is a lightweight and compact script language. It can be used by being embedded in radio transmitters and easily reading and modifying the parameter set of the TX module. The directions for using Lua are as below.

    • Download the elrsV3.lua on the BETAFPV official website or ExpressLRS configurator;
    • Save the elrsV3.lua files onto the radio transmitter's SD Card in the Scripts/Tools folder;
    • Press the "SYS" button or the "Menu" button on the EdgeTX system to access the "Tools" interface where you can choose "ExpressLRS" and run it；
    • The below images show the Lua script if it runs successfully. 

    Bind & External Power Supply

    The Micro TX V2 Module comes with the official major release ExpressLRS V3.4.3 protocol and no Binding Phrase included. So please make sure the receiver works on the official major release ExpressLRS V3.0.0 protocol. And no Binding Phrase set.

    • Put the receiver into binding mode and wait for the connection；
    • Using the button and OLED, move to the Bind position and short-press the button. Then the RF module will enter binding status. Or you can enter binding mode by clicking 'Bind' in the Lua script. If the Indicator of the receiver and the module turned solid. It indicates that they bound successfully.

    Note: If the TX module has been reflashed firmware with a Binding Phrase, then using the above binding method will not be bound to other devices. Please set the same binding phrase for the receiver to perform automatic binding.

    The power consumption of the Micro TX V2 Module when using a transmission power of 500mW or above is relatively high, which will shorten the usage time of the radio controller.

    • Users can connect an external battery to the TX module through the XT30 port. The usage method is shown in the following figure.

    Note: Please ensure the battery is fully charged before powering up the TX module to prevent reboot due to insufficient power supply, resulting in disconnection and loss of control.

    FAQ

    • Click to download the User Manual for the Micro TX V2 Module.
    • Click to download the Firmware for the Micro TX V2 Module.

    Package

    • 1 * Micro TX V2 Module
    • 1 * Moxon Antenna V2
    • 1 * GH1.25-FUTABA Male Adapter Cable
    • 1 * User Manual
    • 1 * USB to Type-C Data Cable
    • 1 * Service Card

     

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 9805543320

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    4.3 ★★★★★
    Based on 14 reviews
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    J
    Verified Purchase
    James David Reyome
    Omaha, US
    ★★★★★ 5
    Almost the perfect watch
    Color: Black/Blue
    I have owned three earlier models of these things going back to the days when I actually ran road races. They are brilliant pieces of work. My only complaint of them was that the start/stop/split button(s)--there were two on the older models--were too small. Well, apparently Timex listens and the two small buttons are now combined into one larger one. Probably this was done years ago but I'm only now getting back into road work, so now I get to discover it. The perfect watch? Almost. I especially like this model as my eyes are not what they used to be and the oversized face makes it easier to read. The downside to this is that it also makes the crystal easier to scratch. That's always been an issue, but I can live with it. No, the real problem with this product is, was, and apparently ever shall be, the band. Now, it could be worse, it could be a resin band (like the old ones) that will crack and break within a couple of years, but no, this is a nylon and velcro wrap style which should be just dandy, but for three glitches: 1. it's too short 2. it's too narrow (gee whiz, Timex designers, it's an oversized watch, why not a matching oversized band?) and 3. it's still resin where it attaches to the actual watch. Now, I imagine it's probably less prone to breakage in how it's implemented, but if you should choose to replace it, I can see no obvious way of removing it short of cutting it off. Really? But these are minor complaints. I doubt it would be comfortable on anyone whose wrists are much bigger than my own, but replacement bands are everywhere, and this watch will keep time with style and it's brilliant at splits. Heck, it even functions admirably as a backup for my expensive stopwatches at our regular short track stock car events. For my money (and did I mention the price is wonderful?) the Ironman is still the best at what it does, and for what it can do.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 19, 2014
    S
    Verified Purchase
    striker
    Lexington, US
    ★★★★★ 5
    Good hard use watch.
    Color: Black/Silver-Tone
    Review Calibration: 3 stars means it works as advertised, nothing special during use, and no amazing features. Higher stars mean better-than-expected performance and features. This is 5 stars because it is my favorite work/hard-use watch. I have been wearing one for years, and like all Timex watches, it can take a beating. I have to replace it when the band's ears get so damaged that they won't hold the band on. This has more to do with the plastic's lifespan than with a design issue. I am hard on watches. This watch normally lasts ne 7-10 years between replacements.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 27, 2026
    A
    Verified Purchase
    Amazon Customer
    Belleville, US
    ★★★★★ 5
    Great watch
    Color: Black/Silver-Tone
    Great watch, with many features, specially for those that travel in various time zones.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 7, 2026
    M
    Verified Purchase
    Marc McC
    Belleville, US
    ★★★★★ 4
    Typical Ironman quality
    Color: Black/Silver-Tone
    This is my fourth Timex Ironman watch. I own many watches, and prefer the Ironman for casual wear and sporting activities as well as swimming and snorkeling. I decided to replace an earlier model with this one rather than pay to change the battery. The Ironman has changed very little over the years since its introduction in the '80s, with the exception of cosmetic improvememnts and a larger display. I selected the "oversize" model as I was looking for a little more heft to this model. This watch fits the bill, not as chunky as my G-Shock. A pleasant surprise was the weight of the watch. This model is lightweight, another advantage over the G. It's larger than the typical Ironman model, but about the same weight. The band lacks the stiffness of some other Timex and Casio models, and is quite comfortable. Typical Ironman functions are unchanged, and the ability to "hide" various functions makes operation of the watch more efficient. There are three time zones, useful when traveling, as well as the usual chronograph/timer and alarm functions. I haven't worn the watch in the pool or ocean yet, but if experience is any guide, I expect no problems. I've never had an Ironman leak, whether during water sports or snorkeling. These are great watches for the money. I prefer 200 meter water resistance for this type of watch, but Timex has yet to build an Ironman 200m that doesn't overwhelm my wrist in weight and size. I'm not a big guy, and they are simply too large for my wrist. Looking forward to years of service with this watch. Definitely a good timepiece for the price.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2013
    L
    Verified Purchase
    L C
    West Palm Beach, US
    ★★★★★ 5
    Will not be disappointed
    Color: Black/Blue
    Keeping in mind that I received this item yesterday (2/24/16), I absolutely love this watch. The reason I have so much confidence with this watch is because I've owned one other Timex similar to this one, and it served me extremely well and is still able to do so. First off, this watch is certainly aesthetically pleasing. The blue color around the face of the watch and outline in the band, goes really well with the black frame. It's just an overall nice looking watch. More importantly, the quality seems great. As I mentioned, I've owned a Timex expedition, which I've had for more than 2 years, and it's still working perfectly fine. The watch seems like it's put together very well and there's no loose or flimsy parts. One complaint that many people seem to have with Timex is the quality of their band. Unfortunately I'd have to agree, since the band on my other Timex that's still working like the first day I got it, cracked and broke and is only being held together by the nylon fabric on the other side of the band. You're not going to have that problem with this watch. It's a full nylon band with Velcro adjustment, for precise fitting. it feels extremely comfortable and you won't need to worry about the band cracking (although I'm sure there will be certain defects in a mass produced bunch). I will use this watch for work and running, and rarely plan on taking it off. Just to give you an idea, I also have a garmin gps watch that I love and obviously has more functions than this watch. However, the second I received this watch, I slapped it on and put my garmin to the side. This watch also looks amazing when you wear it. I'll update this feedback as needed, but I'm confident this watch will serve me for years to come, just as my other one has.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 25, 2016

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