RF Wireless Transmitter & Receiver Module 433MHz
The 433MHz RF Transmitter and Receiver Module is one of the most widely used wireless communication solutions for hobby electronics, IoT systems, home automation, and remote control projects. It enables low-cost ASK/OOK wireless communication with excellent range and stability, making it perfect for wireless sensors, smart systems, and remote switching applications.
This module easily integrates with Arduino, NodeMcu, and Raspberry Pi, providing a simple and affordable way to transmit and receive data wirelessly up to 50–200 meters depending on antenna and environment.
✨ Key Features
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Low-cost wireless communication module
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Working frequency: 433MHz
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Long-range transmission (up to 200m with antenna)
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ASK/OOK modulation
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Compatible with Arduino, NodeMcu, Raspberry Pi
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Ideal for remote control and IoT applications
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Ultra-low power consumption
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Stable signal transmission
🔧 Technical Specifications
| Parameter | Transmitter | Receiver |
|---|---|---|
| Voltage | 3–12V DC | 5V DC |
| Frequency | 433MHz | 433MHz |
| Modulation | ASK / OOK | ASK / OOK |
| Output Power | 10mW @ 9V | – |
| Sensitivity | – | -105dB |
| Transmission Range | 20–200m | – |
| Data Rate | 1–10kbps | 1–10kbps |
| Antenna | External required | External required |
🛠Applications
Smart Home & IoT
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Wireless sensor networks
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Smart door systems
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Weather stations
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Wireless alarms
Remote Controls
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Car security remote
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Garage door opener
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RF remote switches
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Wireless relay control
DIY Electronics Projects
âš Precautions
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Always use a proper antenna wire (~17cm for 433MHz).
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Avoid interference from high-frequency devices.
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Keep modules away from metal surfaces for better signal.
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For long-range, use a regulated 9–12V supply for transmitter.
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Ensure ground connection is stable for better reception.
🔗 Internal Category Links
🎥 YouTube Tutorial Video
Watch Video:https://www.youtube.com/shorts/CUlhFQ7t4SY
4. Product Summary
The 433MHz RF Transmitter and Receiver Module is an affordable and reliable wireless communication pair ideal for IoT, automation, and DIY electronics. With long-range capability and compatibility with Arduino, NodeMcu, and Raspberry Pi, it is perfect for remote controls, sensors, and smart wireless systems.
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