Happymodel ES900 DUAL RX ELRS Radio Receiver — Long Range Diversity Receiver

The Happymodel ES900 DUAL RX ELRS is a high-tech radio receiver for drones and quadcopters, designed for stable long-range communication. Manufacturer: Happymodel. Product category: Drones & Quadcopters > Drone Components > Drone Spare Parts > Receivers. This compact module combines hardware diversity, modern RF components, and a built-in temperature-compensated crystal oscillator (TCXO) for stable operation in various temperature conditions.

Key Advantages

• True hardware diversity: two Dual SX1276 receivers ensure reliable reception even in complex RF interference conditions.
• Powerful telemetry — 17 dBm, which enhances long-range communication reliability.
• High-performance ESP32 PICO D4 controller for data processing and stable firmware interaction.
• Easy power supply: operates on standard +5V DC, connected to the "5v" pin.
• Extremely low weight — 1.5 g (without antenna), minimizing impact on the aircraft's total mass.
• Built-in TCXO ensures frequency accuracy and improved performance with temperature changes.

Specifications

Package Contents

• 1x Happymodel ES900 DUAL RX ELRS Diversity Receiver
• 2x T-shaped antennas

The Happymodel ES900 DUAL RX ELRS receiver is designed for pilots and engineers who need a reliable long-range module with low latency and easy integration. Support for the CRSF protocol and powerful 17 dBm telemetry make this receiver an excellent choice for racing, freestyle, and long-range flights where stability and data transfer speed are critical. The diversity architecture with Dual SX1276 ensures reliable signal reception, while the ESP32 PICO D4 is responsible for fast telemetry processing and communication with the flight controller. The compact board size (21.5 mm x 16 mm) and weight of 1.5 g allow the module to be integrated into almost any drone design without significant mass increase. The IPEX MHF 1 / U.FL antenna connector ensures compatibility with a wide range of antennas, and the built-in TCXO guarantees frequency stability across various temperature conditions. Easy connection (+5V DC to the "5v" pin) and readiness for firmware updates make this receiver a versatile solution for modern ELRS radio systems.

Other products in this category here Receivers

Other products in this category here Receivers