RadioMaster ER4 2.4GHz ELRS PWM Receiver
SKU RM-ER4-PWM-ELRS
Free standard shipping on orders of ₹999 and above. Pan India delivery from Gurugram, Haryana.
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Product details
The RadioMaster ER4 is an ultra-compact 4-channel PWM receiver bringing the exceptional range and low latency of the 2.4GHz ELRS protocol to traditional RC aircraft, ground vehicles, and custom surface projects. By outputting direct PWM, this receiver allows you to drive servos and ESCs without requiring a dedicated flight controller, making it an ideal choice for micro fixed-wing builds, DLG gliders, and lightweight robotics.
Key features
Direct 4-channel PWM output eliminates the need for a flight controller or external CRSF-to-PWM converter.
Integrated voltage telemetry supports up to 35V, allowing real-time flight battery monitoring on your radio.
Accepts 4.5V to 8.4V direct input, fully supporting modern high-voltage (HV) servo setups.
Streamlined 3g footprint easily fits into restricted glider fuselages and micro equipment bays.
Specifications
Frequency: 2.4GHz
Channels: 4x PWM
Operating Voltage: 4.5–8.4V DC
Telemetry Power: 10mW
Voltage Detection Range: 4.0–35V DC
Dimensions: 30 x 15 x 5 mm
Weight: 3.0 g
Firmware Target: RadioMaster ER4 2400 PWM RX
Wire the included telemetry cable directly to your main flight battery to enable accurate voltage reporting. Ensure your transmitter is updated to a compatible ELRS firmware version before binding.
| RC Protocol | ELRS |
|---|---|
| Made in India | No |
| Brand | RadioMaster |
| Frequency | 2.4GHz |
| Weight | 3 g |
| PWM Channels | 4 |
| Diversity | No |
| Output Protocol | PWM |
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