Kimpok Transmitter - micro ELRS TX-720MHz module

Kimpok micro ELRS TX-720MHz is an external ExpressLRS transmitter module designed for FPV drones and other RC models. Built for hobbyists who want a more stable control link and flexible ELRS setup options, it operates on 720 MHz, supports the CRSF protocol, delivers adjustable output power up to 1000 mW, and offers selectable packet rates of 25 / 50 / 100 / 200 Hz.

Based on the popular ExpressLRS platform, this module is focused on low latency, solid range performance, and wide configuration possibilities. With its metal housing, built-in display, control button, USB-C port, and active cooling, the Kimpok TX-720MHz is a great fit for more demanding FPV and RC setups.

ExpressLRS 720 MHz for a Reliable RC Control Link

The Kimpok micro ELRS TX-720MHz is designed to transmit digital control data only - not video or audio. The 720 MHz band offers strong signal propagation and can be especially useful when maintaining a dependable connection between your radio and model is a priority. The module is intended for use with compatible ExpressLRS receivers and radios that support CRSF output.

• ExpressLRS system - popular open-source RC link trusted by the FPV community.
• 720 MHz frequency - dedicated to digital control signal transmission.
• CRSF support - requires a compatible radio with Crossfire/CRSF protocol output.
• Works with compatible ELRS receivers - choose a matching RX for the proper band.
• No video or audio transmission - this module is made for model control only.

Adjustable 100-1000 mW Output Power

The Kimpok TX-720MHz lets you choose from four power levels, making it easier to match the module to your flying conditions, distance, antenna setup, and local radio regulations. Lower power works well for testing and short-range sessions, while higher power provides extra link headroom in more challenging environments.

• 100 mW - ideal for bench testing and short-range flights.
• 250 mW - a balanced option for range, temperature, and power consumption.
• 500 mW - increased output for more demanding FPV setups.
• 1000 mW - maximum output for users who need extra control link reserve.

At higher power levels, the transmitter draws more energy and generates more heat, which is why the module features a heatsink and cooling fan. Before flying, make sure airflow is not blocked and the antenna is properly connected.

25 / 50 / 100 / 200 Hz Packet Rates and Easy On-Module Configuration

The micro ELRS TX-720MHz supports 25 Hz, 50 Hz, 100 Hz, and 200 Hz packet rates, allowing you to tailor control behavior to your flying style and signal requirements. Lower rates may help prioritize link robustness, while higher rates are better suited for faster, more responsive control.

On the front of the module, you will find a small display and a control button for quick access to essential settings. A USB Type-C port is used for configuration and firmware updates, while LUA script support in compatible OpenTX systems makes setup even more convenient from your radio.

• Selectable packet rates: 25 Hz, 50 Hz, 100 Hz, 200 Hz.
• Built-in display for checking current operating settings.
• Control button for quick parameter changes.
• USB Type-C for setup, programming, and firmware updates.
• LUA script support for compatible OpenTX-based radios.

Connectors, Power Input, and Durable Metal Housing

The Kimpok micro ELRS TX-720MHz operates on an input voltage of 5-12 V. Power is supplied through an XT30 connector, and the rear side of the housing includes a 5-pin signal connector labeled NC, GND, CRSF, and 5-12 V. The SMA antenna connector allows you to use the included antenna or another compatible antenna tuned for the 720 MHz band.

The metal enclosure improves durability and helps with heat dissipation. With compact dimensions and a weight of only 54 g without the antenna, the module is easy to transport and practical to mount on a radio transmitter or another compatible control platform.

What’s in the Box and Usage Notes

The set includes the transmitter module and a 720 MHz antenna. To operate the module, you will need a compatible radio with CRSF support and a matching ExpressLRS receiver working on the correct band. Before powering up, always check the power connection, antenna installation, and software configuration.

• Kimpok micro ELRS TX-720MHz - 1 pc
• 720 MHz antenna - 1 pc

Always connect the antenna to the SMA port before turning the module on. Do not use the transmitter without an antenna, as this may damage the RF output stage. Choose the output power according to your flying conditions and local radio regulations. Please note that this module is intended for control transmission only and does not send video or audio.