Looking for 2.4ghz Receiver Radiomaster? Radiomaster ER4 2.4GHz ELRS PWM Receiver is available at Zbotic with fast shipping across India.
Radiomaster ER4 2.4GHz ELRS PWM Receiver
2.4ghz Receiver Radiomaster – Radiomaster ER4 2.4GHz ELRS PWM Receiver
Description:
The Radiomaster ER4 2.4GHz ELRS PWM Receiver are based on the revolutionary ExpressLRS system. It offers high performance, high reliability, flexible configuration, fast response speed and ultra-long range bringing you brand new experience with your hobby.
The ER4 PWM receiver can drive 4 servos simultaneously. Designed with a very small volume, it is suitable for small aircraft models, ship models, car models and other models that require a small or lightweight receiver while still providing full range.
Features:
- Based on the Revolutionary ExpressLRS System
- High performance, high reliability, flexible configuration, fast response speed and ultra-long range
- Support 4 PWM Channel
- Optimized ground up PCB design
- Automatically voltage telemetry of external battery voltage or built-in receiver voltage
- Supports Wi-Fi updates and WEBUI configuration
- High quality 2.54 mm connector
- Standard 15 cm High Sensitivity Antenna
- For small aircraft, boats and cars and more
- Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS
Specifications:
- Model / Item: ER4 2.4 GHz ELRS PWM Receiver
- Power Supply / Input Voltage: DC 4.5 V – 8.4 V
- Antenna: 15 cm high-sensitivity 2.4 GHz antenna
- Wireless Protocol / Firmware: ExpressLRS (pre-installed, e.g., v3.3.0)
- Output Channels: 4 PWM channels
- Serial Output: CRSF / SBUS
- Telemetry Power: 10 mW
- Battery Voltage Detection Range (EXT-V): DC 4.0 V – 35 V
- Dimensions: 30 mm × 15 mm × 5 mm
Radiomaster ER4 2.4GHz ELRS PWM Receiver Overview
The Radiomaster ER4 2.4GHz ELRS PWM Receiver is a compact remote-control receiver based on the ExpressLRS 3.3.0 protocol, designed for models that require direct PWM servo outputs without a flight controller. It delivers reliable 2.4GHz link performance, telemetry feedback, and wide voltage compatibility for small aircraft, boats, cars, and other lightweight RC projects.
Key Features of Radiomaster ER4 2.4GHz ELRS PWM Receiver
- ExpressLRS 3.3.0 pre-installed for low latency and long-range performance
- Four independent PWM outputs to drive servos directly
- Dual output formats: CRSF and SBUS compatibility for versatile integration
- 10mW telemetry power for real-time link quality and battery voltage feedback
- Wide input voltage detection from 4.0 to 35V DC for battery flexibility
- Ultra-compact and lightweight form factor ideal for space-limited models
- Fast shipping from Zbotic across India for rapid project deployment
Applications and Use Cases
- Fixed-wing trainers and foam planes using direct servo connections
- Scale boat models requiring onboard telemetry and servo control
- RC cars and crawlers with multiple steering or suspension servos
- Gliders and sailplanes where minimal weight and size are critical
- DIY robotics projects needing a small, reliable PWM link
- Any lightweight RC setup where a dedicated flight controller is unnecessary
How to Use Radiomaster ER4 2.4GHz ELRS PWM Receiver
Power the ER4 receiver from your model’s battery (4–35V DC), then connect up to four servos to the labeled PWM ports. Use your ExpressLRS-equipped transmitter to enter bind mode, pulse the binding button on the receiver, and confirm the solid LED indication. Once bound, mount the receiver securely, verify servo directions, and configure end points in your transmitter’s ExpressLRS menu.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
How many PWM channels does the ER4 receiver provide?
The ER4 receiver offers four independent PWM outputs, allowing you to connect up to four servos directly without needing a flight controller.
What voltage range can I use to power the ER4 receiver?
The Radiomaster ER4 accepts a wide input voltage from 4.0V to 35V DC, accommodating various LiPo battery configurations and BEC outputs.
How do I bind the ER4 to my ExpressLRS transmitter?
Enter bind mode on your transmitter’s ExpressLRS menu, then power up the ER4 while holding its bind button. The receiver LED will flash rapidly and then stay solid once binding is successful.
Datasheet:
Package Includes:
- 1 x ER4 2.4GHz ELRS PWM Receiver
- 2 x Heat-shrink tube
- 1 x Voltage telemetry wire (Type-A)
- 1 x User Card
How to Flash Betaflight Firmware: Complete Beginner Guide
Table of Contents What is Betaflight and Why Flash It? Before You Begin: What You Need Step 1:...
Read More →
ArduPlane Setup: Complete Guide to Building a Fixed-Wing Autonomous UAV (2026)
ArduPlane is the world's most capable open-source autopilot system for fixed-wing unmanned aerial vehicles. Developed by the ArduPilot...
Read More →
Drone Fishing: Drop Bait System with GPS RTH
Table of Contents Understanding Drone Fishing Key Components and Requirements Step-by-Step Setup Guide Configuration and Optimisation Practical Tips...
Read More →Technical Specifications
| Brand | Radiomaster |
|---|---|
| Model | ER4 |
| Interface / Protocol | ELRS, 4G |
| Frequency | 2.4GHz |
| SKU | AI7264 |
| Weight | 0.013 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Radiomaster ER4 2.4GHz ELRS PWM Receiver is a versatile drone transmitter and receiver used across a wide range of applications including FPV drone control, RC aircraft, ground vehicles, and long-range drone operations.
Common use cases:
- Setting up a new FPV quad with digital link
- Replacing a receiver after a crash
- Building a long-range fixed-wing aircraft
This product is ideal for FPV pilots, RC hobbyists, and drone builders.
Technical Tip: ELRS (ExpressLRS) offers excellent range and low latency at 2.4GHz. Ensure your transmitter and receiver use the same protocol.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Radiomaster product sourced from authorized channels
Hemant Reddy –
Great Radiomaster ER4 2.4GHz ELRS PWM Receiver for beginners and professionals alike. Highly recommended for drone enthusiasts.
Anil Grewal –
Great Radiomaster ER4 2.4GHz ELRS PWM Receiver for beginners and professionals alike. Highly recommended for drone enthusiasts.
Sumit Dave (verified owner) –
Amazing build quality! This Radiomaster ER4 2.4GHz ELRS PWM Receiver is sturdy and lightweight at the same time.
Sanya Menon (verified owner) –
Very good quality Radiomaster ER4 2.4GHz ELRS PWM Receiver. I’ve been building drones for 2 years now and this is one of the best I’ve used.
Gaurav Sharma (verified owner) –
Pretty good Radiomaster ER4 2.4GHz ELRS PWM Receiver. Works as expected for my drone project. Would buy again.
Chetan Dhillon –
Pretty good Radiomaster ER4 2.4GHz ELRS PWM Receiver. Works as expected for my drone project. Would buy again.
Lokesh Krishnan –
My 5th order from Zbotic. This Radiomaster ER4 2.4GHz ELRS PWM Receiver is excellent as always. Totally reliable store.
Kapil Khanna (verified owner) –
My 5th order from Zbotic. This Radiomaster ER4 2.4GHz ELRS PWM Receiver is excellent as always. Totally reliable store.
Suresh Khanna –
My 5th order from Zbotic. This Radiomaster ER4 2.4GHz ELRS PWM Receiver is excellent as always. Totally reliable store.
Divyansh Shetty (verified owner) –
Solid Radiomaster ER4 2.4GHz ELRS PWM Receiver. Not the absolute best but excellent value for the price point.
Yogesh Shetty –
Decent Radiomaster ER4 2.4GHz ELRS PWM Receiver for the price. Using it in my quadcopter, performs well overall.
Tushar Bhat (verified owner) –
Amazing build quality! This Radiomaster ER4 2.4GHz ELRS PWM Receiver is sturdy and lightweight at the same time.
Arjun Chauhan –
Nice Radiomaster ER4 2.4GHz ELRS PWM Receiver, does the job. Delivery took a couple of extra days but product is solid.
Dev Dhillon (verified owner) –
Good product overall. My drone is flying well with this Radiomaster ER4 2.4GHz ELRS PWM Receiver. Satisfied with the purchase.
Prashant Modi (verified owner) –
Amazing build quality! This Radiomaster ER4 2.4GHz ELRS PWM Receiver is sturdy and lightweight at the same time.
Devansh Naidu (verified owner) –
Outstanding Radiomaster ER4 2.4GHz ELRS PWM Receiver! Installed it on my racing quad and the performance is amazing.
Mayank Tiwari (verified owner) –
Solid Radiomaster ER4 2.4GHz ELRS PWM Receiver. Not the absolute best but excellent value for the price point.
Harshit Dubey (verified owner) –
Great Radiomaster ER4 2.4GHz ELRS PWM Receiver for beginners and professionals alike. Highly recommended for drone enthusiasts.
Kabir Dhillon (verified owner) –
Using this Radiomaster ER4 2.4GHz ELRS PWM Receiver in my hexacopter. Smooth operation and excellent thrust.
Suresh Jain (verified owner) –
Amazing build quality! This Radiomaster ER4 2.4GHz ELRS PWM Receiver is sturdy and lightweight at the same time.
Divyansh Hegde (verified owner) –
Very good quality Radiomaster ER4 2.4GHz ELRS PWM Receiver. I’ve been building drones for 2 years now and this is one of the best I’ve used.
Anjali Thakur (verified owner) –
My 5th order from Zbotic. This Radiomaster ER4 2.4GHz ELRS PWM Receiver is excellent as always. Totally reliable store.
Rahul Batra (verified owner) –
Excellent product for the price. My drone flies smoothly with this Radiomaster ER4 2.4GHz ELRS PWM Receiver. Highly recommended!
Piyush Mishra (verified owner) –
Good Radiomaster ER4 2.4GHz ELRS PWM Receiver. Works well for my drone build. Packaging could be slightly better.
Vijay Bisht (verified owner) –
Amazing build quality! This Radiomaster ER4 2.4GHz ELRS PWM Receiver is sturdy and lightweight at the same time.
Darshan Thakur (verified owner) –
Using this Radiomaster ER4 2.4GHz ELRS PWM Receiver in my hexacopter. Smooth operation and excellent thrust.
Chetan Kumar (verified owner) –
Amazing build quality! This Radiomaster ER4 2.4GHz ELRS PWM Receiver is sturdy and lightweight at the same time.
Anjali Vyas (verified owner) –
Solid Radiomaster ER4 2.4GHz ELRS PWM Receiver. Not the absolute best but excellent value for the price point.
Sachin Vyas (verified owner) –
This Radiomaster ER4 2.4GHz ELRS PWM Receiver is value for money. Comparing with other brands, Zbotic offers the best deal.
Vinay Sharma (verified owner) –
Amazing build quality! This Radiomaster ER4 2.4GHz ELRS PWM Receiver is sturdy and lightweight at the same time.
Lokesh Dave (verified owner) –
Received the Radiomaster ER4 2.4GHz ELRS PWM Receiver in great condition. Testing done, everything works perfectly.
Sunil Nair (verified owner) –
Nice Radiomaster ER4 2.4GHz ELRS PWM Receiver, does the job. Delivery took a couple of extra days but product is solid.
Gaurav Bhatt (verified owner) –
Good product overall. My drone is flying well with this Radiomaster ER4 2.4GHz ELRS PWM Receiver. Satisfied with the purchase.
Yogesh Chauhan (verified owner) –
Decent Radiomaster ER4 2.4GHz ELRS PWM Receiver for the price. Using it in my quadcopter, performs well overall.