RadioMaster ER5A V2 ExpressLRS Receiver

RadioMaster ER5A V2 2.4GHz 5CH ExpressLRS PWM Receiver – Fly Further, Smarter

Ready to ditch sketchy signals and embrace the future of RC control? Meet the RadioMaster ER5A V2, a 5-channel PWM receiver built on the game-changing ExpressLRS system. If you’re hunting for a reliable ELRS PWM receiver with incredible range, lightning-fast response, and solid reliability for your RC aircraft, your search altitude just hit cruising level. This little marvel brings the power of ExpressLRS to your fixed-wing planes, gliders, or any model needing standard PWM servo outputs.

Forget range anxiety; the ER5A V2 boasts the legendary long-range performance ExpressLRS is known for. Plus, it features built-in telemetry for receiver voltage AND external battery voltage (up to 35V, detected automatically!), so you know exactly how your power system is doing without guesswork. Setup is a breeze with Wi-Fi updates and a straightforward WebUI configuration. Stop blaming lag – it’s time for control that feels truly connected.

Key Features:

• ExpressLRS Powerhouse: Built on the high-performance, open-source ELRS firmware for superior range, low latency, and reliability.
• 5 PWM Channels: Standard servo outputs for straightforward aircraft setup (ailerons, elevator, throttle, rudder, gear/flaps).
• Smart Telemetry: Automatically detects and reports receiver voltage (Rx V) and main battery/BEC voltage (Tx V) back to your compatible ELRS transmitter.
• Rock-Solid Signal: Features a built-in TCXO (Temperature Compensated Crystal Oscillator) ensuring stable performance even when temperatures fluctuate. Less drift, more dependable flying!
• Easy Updates & Config: Supports Wi-Fi firmware updates and WebUI configuration – no complex tools needed for basic setup.
• Optimized Design: Compact PCB layout specifically designed for aircraft applications, making installation clean and simple.
• Broad Compatibility: Works seamlessly with any 2.4GHz ExpressLRS compatible transmitter module or radio (like the RadioMaster MT12 or Boxer/TX16S with ELRS module).

Specifications:

• Item: ER5A V2 2.4GHz ELRS PWM Receiver
• Power Supply: DC 4.5 – 8.4V
• Antenna Type: 65mm 2.4GHz T Antenna
• Protocol: ExpressLRS
• Output Bus: 5x PWM Channels
• Telemetry Power: Up to 35V detection (Tx V / External Battery)
• Receiver Voltage Detection: Yes (Rx V)
• Frequency: 2.4GHz ISM
• Dimensions: 36*17*10mm
• Weight: 4.3g (including antenna)
• Firmware: ExpressLRS (Check RadioMaster website for specific target)

What’s in the Box:

• 1 x RadioMaster ER5A V2 ELRS PWM Receiver
• 1 x 65mm 2.4GHz T Antenna
• 5 x Servo Connector Wires (PWM output)
• 1 x Voltage Sense Wire (for external battery telemetry)
• 1 x User Manual / QR Code Link

Disclaimer: We pack these with care, but occasionally the gremlins swap things around. The exact included accessories (like wire colours or antenna style) might vary slightly based on current stock and manufacturing updates. You’ll always get the core receiver and necessary bits to get airborne!