Receiver Happymodel ES900 DUAL RX ELRS, 868/915MHz, Long Range, True Diversity

The Happymodel ES900 Dual RX ELRS Receiver delivers top-tier signal reliability by leveraging both 868 MHz and 915 MHz bands in a True Diversity configuration, enabling flawless reception in challenging RF environments.

Powered by an ESP32 PICO D4 MCU and dual SX1276 RF chips, this receiver ensures robust and responsive control. The inclusion of a built-in TCXO stabilizes frequency under varying temperature conditions for consistent performance.

In a compact form factor—21.5 × 16 mm, weighing just 1.5 g (antenna excluded)—it's tailored for lightweight builds and fits neatly with standard 20 × 20 mm mounting holes.

Packed with ExpressLRS essentials: CRSF protocol, 17 dBm telemetry output, and simple 5 V power input via pad. It's the go-to for pilots demanding precision, speed, and resilience.

Key Specifications:

• Receiver: Happymodel ES900 Dual RX ELRS

• RF Bands: 868 MHz / 915 MHz (True Diversity)

• MCU: ESP32 PICO D4

• RF Chips: Dual SX1276

• Antenna Connector: IPEX MHF 1 / U.FL

• Telemetry Power: Up to 17 dBm

• Protocol: CRSF (Crossfire)

• Power Input: +5 V via “5V” pad

• Dimensions: 21.5 × 16 mm (20 × 20 mm mounting)

• Weight: 1.5 g (excluding antennas)

• Built-In TCXO: Yes (temperature compensated crystal oscillator)