Happymodel ExpressLRS ES24TX Pro 2.4GHz 1W Micro TX Radio Signal Transmitter
The updated Happymodel ES24TX Pro Micro ExpressLRS TX module is a ready-to-install and operate 2.4GHz transmitter with a maximum output power of 1W, providing stable long-range communication. The new version features a 500 mW power increase compared to the previous ES24TX model, enhancing communication reliability in noisy environments and challenging RF conditions.
The module comes fully assembled for installation in radio transmitters with a Micro JR bay. The housing is equipped with a built-in heatsink and cooling fan, ensuring efficient heat dissipation during prolonged high-power operation, which is critical for competitions and intensive amateur use.
The kit includes a Happymodel Moxon antenna with 4.18 dBi gain, significantly improving signal transmission efficiency and reception range. The transmitter is compatible with most OpenTX-based radio transmitters that have a Micro JR slot, making it a versatile solution for drone pilots and FPV enthusiasts.
Specifications
- Frequency Range: 2400 – 2500 MHz
- Max Power: 1W
- Processors: main — ESP32; auxiliary — ESP8285
- RF Chip: SX1280IMLTRT
- RF Output Power: > 30 dBm
- Refresh Rate: minimum 25 Hz, maximum 500 Hz
- Antenna Gain: 4.18 dBi
- Domain: ISM2400
- Firmware: factory — ELRS V2.0; target — HappyModel_ES24TX_Pro_Series_2400_TX
- Power Supply: 5 ~ 10 V
- Interface: 5-pin standard JR connector
- Physical Parameters: size 70 x 49 x 32.5 mm; weight 51 g (without antenna)
Package Contents
- Happymodel ExpressLRS ES24TX Pro Transmitter Module — 1 pc.
- Happymodel Moxon 2.4GHz Antenna — 1 pc.
The Happymodel brand targets users who require high power and reliable communication in their FPV systems and drones. The factory ELRS V2.0 firmware and OpenTX compatibility ensure flexible settings and easy integration into existing control systems. The combination of modern ESP32 and ESP8285 microcontrollers along with the SX1280 RF chip guarantees stable operation and high data packet quality, while the ability to operate in the ISM2400 band and an output power of over 30 dBm make the module suitable for amateur flights, long-range missions, and competitions.
The module is suitable for installation in transmitters with a Micro JR connector, requires 5–10 V power, and supports a refresh rate from 25 to 500 Hz, allowing optimal settings for various tasks — from smooth control to high-speed modes. Compact dimensions of 70 x 49 x 32.5 mm and a weight of 51 g (without antenna) make it convenient for integration even into lightweight radio stations.
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