RadioMaster ER5A V2 2.4GHz ELRS PWM Receiver
The RadioMaster ER5A V2 is a 2.4GHz ExpressLRS PWM receiver designed for fixed-wing and multirotor aircraft, providing 5 PWM servo channels with automatic voltage telemetry detection and a stable TCXO for reliable long-range control.
Features
- 5-channel PWM output for direct servo and flight controller control.
- Automatic detection of external battery or BEC voltage for telemetry (4.0–35V).
- Integrated TCXO (Temperature Compensated Crystal Oscillator) for stable frequency.
- Supports Wi-Fi-based firmware updates and WEBUI configuration.
- Compact 37×19.3x13mm footprint and 6.7g weight for easy integration.
Out of stock
The ER5A V2 receiver leverages the ExpressLRS 2.4GHz protocol to deliver ultra-low latency, high-resolution control, and extended range for RC aircraft and FPV drones. Its optimized PCB design ensures robust signal integrity and resistance to interference in demanding RF environments.
Engineered for versatility, it automatically selects between an external battery source or the receiver’s own BEC supply for accurate voltage telemetry back to the transmitter, a critical feature for monitoring flight pack health. The built-in TCXO maintains precise frequency control across a wide temperature range, ensuring consistent link performance.
Additional Information
| Weight | 0.0067 kg |
|---|---|
| Dimensions | 3.7 × 1.93 × 1.3 cm |


















