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RFRX-ELRS24 ELRS 2.4GHz RC Receiver | SX1281+ESP8285 Chipset | 100mW Low Latency High Refresh Rate | FPV Drone Racing & Freestyle Remote Receiver
RFRX-ELRS24 is a 2.4GHz RC receiver based on the ExpressLRS open-source protocol. It features an SX1281+ESP8285 dual-chip solution, 100mW telemetry power and 3.6-4.2V wide voltage input. With low latency, high refresh rate and strong anti-interference performance, it is compatible with mainstream ELRS transmitters and ideal for high-precision flight scenarios like FPV racing and freestyle.
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Product Overview
The RFRX-ELRS24 is a high-performance 2.4GHz RC receiver built on the ExpressLRS open-source protocol. It adopts a dual-chip discrete architecture with a professional SX1281 RF chip and an ESP8285 main controller, delivering 100mW telemetry transmit power with three core advantages: low latency, high refresh rate and strong anti-interference.
Supporting a wide 3.6V-4.2V input voltage range, it can be powered directly by a single-cell lithium battery and is compatible with most ELRS-enabled remote controllers and TX modules on the market. Its compact, lightweight design ensures easy installation. It is widely used in FPV drone racing, freestyle flight and small indoor/outdoor RC models that require high control precision and low latency, providing pilots with a responsive, stable and reliable two-way RC link solution.
Core Technical Specifications
| Specification | Details |
|---|---|
| Model | RFRX-ELRS24 |
| Operating Frequency | 2.4GHz ISM Band |
| Chipset Solution | SX1281 RF Chip + ESP8285 Main Controller Chip |
| Telemetry Transmit Power | 100mW |
| Input Voltage | 3.6V – 4.2V DC |
| Supported Protocol | ExpressLRS Open-Source RC Protocol |
| Product Type | Two-Way Telemetry RC Receiver |
Core Features & Benefits
1. 2.4GHz Band for High Refresh Rate & Low Latency
Operating on the globally universal 2.4GHz ISM band with a high-performance SX1281 RF chip and LoRa spread spectrum modulation, it delivers excellent anti-interference performance and high-speed data transmission. Compared with low-frequency receivers, it achieves a higher signal refresh rate and lower end-to-end latency, delivering precise and responsive control ideal for latency-sensitive scenarios like FPV racing and freestyle flight, greatly improving control feel and flight experience.
2. Dual-Chip Discrete Architecture for Stable & Anti-Interference Performance
The dual-chip design separates RF processing and main control functions. The SX1281 ensures high-precision signal transceiving and excellent weak-signal demodulation, while the ESP8285 provides sufficient computing power to run ELRS firmware stably. It maintains a solid RC link even in multi-pilot racing environments and sites with complex electromagnetic interference, greatly reducing packet loss and signal loss risks for more reliable flight.
3. 100mW Two-Way Telemetry for Real-Time Flight Status Monitoring
Equipped with a 100mW return link, it transmits core flight data such as battery voltage, flight distance, signal strength and receiver status back to the remote controller in real time, allowing pilots to monitor the aircraft’s working status at all times. Paired with a matching ELRS TX module, it enables stable two-way data communication for both control and status monitoring.
4. Wide Voltage Input for Lightweight & Easy Installation
It supports a wide DC input range of 3.6V-4.2V, powered directly by a 1S LiPo battery to fit the common power system of mainstream FPV drones and small RC models. No extra voltage regulator module is required, simplifying wiring and reducing extra payload, making it ideal for compact small airframes with limited space.
5. Open-Source ELRS Protocol for Wide Compatibility & Flexible Usage
Developed based on the standard ExpressLRS open-source protocol, it is compatible with most ELRS-supported remote controllers and TX modules on the market. It supports online firmware updates and custom parameter tuning, allowing users to adjust refresh rate, transmit power and packet rate according to flight needs for racing, freestyle and daily practice scenarios.
6. Compact & Lightweight Design for Wide Airframe Compatibility
The compact, lightweight body takes up minimal space and adds negligible payload, fitting the installation space of most FPV drones, tiny whoops, indoor micro drones and small fixed-wing aircraft. With standard connection terminals and mounting positions, it is easy to install and set up, even for beginners to complete assembly and binding quickly.
Applicable Scenarios
- FPV drone racing competitions and freestyle flight practice
- Daily flight of indoor/outdoor small FPV drones and tiny whoops
- High-precision short-range control of multi-rotor RC models and small fixed-wing aircraft
- RC link setup for DIY drones and remote control model projects
Package Contents
- 1 × RFRX-ELRS24 ELRS Receiver Main Unit
- 1 × Dedicated Connection Cable
- 1 × Product User Manual
| SKU | IUAV-14115 |
|---|
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