BetaFPV ELRS Micro 500mW (915MHz) Radio Transmitter

Brand: BetaFPV. Product type: Drones & Quadcopters > Transmitters.

The BetaFPV ELRS Micro 500mW (915MHz) is a compact and powerful transmitter module based on the open-source ExpressLRS system, designed for pilots who require reliable, low-latency, and long-range communication. The module features a convenient OLED screen for displaying current parameters, an intuitive control button for binding and changing settings, and a built-in cooling fan with an LED indicator whose color can be customized.

Features and Functions

• The ExpressLRS system ensures high-quality communication: fast data transmission, minimal latency, and stable control.
• OLED screen and button for setting receiver binding, power correction, and refresh rate (TLM/Rate) selection.
• Built-in cooling fan with LED operation indicator; the backlight can be customized to your needs.
• Power supply: 5–12V from a 2S Li-Po battery. Use of 3S batteries is prohibited. Power connector: XT30.

Firmware and Update Notes

• The transmitter module and radio receiver must have the same ELRS firmware version for successful binding and correct operation.
• Wi-Fi updates are not supported; use ExpressLRS Configurator via USB Type-C for flashing.

Technical Specifications

• Compatibility: 5-pin JR connector (OpenTX / CRSF protocol).
• Operating frequency: 915 MHz (EU).
• Output power: 100 mW / 250 mW / 500 mW.
• Refresh rate: 25 Hz / 50 Hz / 100 Hz / 200 Hz.
• Antenna connector: SMA (female).
• USB port: Type-C.
• Housing color: white.
• Dimensions: 65x48.5x23 mm.
• Weight: 52 g (without antenna).

Package Contents

• 1. BetaFPV ELRS Micro TX (868 MHz) transmitter module.
• 2. BetaFPV Moxon 2.4 GHz antenna (SMA Male).
• 3. GH1.25 – JR cable.
• 4. USB – USB Type-C cable.
• 5. English manual.

The BetaFPV ELRS Micro is an optimal solution for racing and freestyle, where low latency and reliable telemetry are critical. Its compact dimensions of 65x48.5x23 mm and weight of 52 g allow the module to be installed even on small frames, and the ability to select output power up to 500 mW enables adapting the device to various flight conditions. The presence of an OLED display and simple settings simplifies field operation, and the cooling fan with backlight ensures stable performance during long sessions.

Please note: configuration and firmware must be performed with device compatibility in mind; for firmware updates, use ExpressLRS Configurator via USB Type-C. The module is compatible with OpenTX/CRSF-based equipment via a 5-pin JR connector.

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