433MHz RF Wireless Receiver & Transmitter Module Pair ASK/OOK
433MHz RF Wireless Receiver & Transmitter Module Pair ASK/OOK
433MHz RF Wireless Receiver & Transmitter Module Pair — ASK/OOK, DC 5V
Upgrade your electronics projects with this 433MHz RF Wireless Receiver and Transmitter Module pair. Featuring super-regeneration technology and operating on the widely used 433MHz frequency band, this duo delivers reliable short-range wireless communication for hobbyists, makers, and engineers alike. Each purchase includes 2 pieces (1 transmitter + 1 receiver), ready to drop into your next DIY circuit or automation project.
Key Features
- Frequency: 433MHz — one of the most popular ISM band frequencies for short-range wireless applications
- Modulation: ASK (Amplitude Shift Keying) / OOK (On-Off Keying) for simple, low-power data transmission
- Operating Voltage: DC 5V — compatible with Arduino, Raspberry Pi, and most microcontroller development boards
- Super Regeneration Receiver: High sensitivity design for improved signal reception in typical indoor environments
- Compact PCB Form Factor: Small board size makes integration into enclosures and breadboards straightforward
- Pair Included: 1 x Receiver Module + 1 x Transmitter Module (2 pcs total)
- Condition: Brand new
Ideal Use Cases
- Home automation and smart switch projects
- Remote control systems (garage doors, lighting, fans)
- Wireless sensor networks and IoT prototyping
- Arduino / microcontroller communication experiments
- Robotics and RC electronics
Technical Specifications
| Frequency | 433MHz |
| Modulation Type | ASK / OOK |
| Operating Voltage | DC 5V |
| Receiver Type | Super Regeneration |
| Quantity | 2 pcs (1 pair) |
| Condition | New |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1 × 433MHz RF Receiver Module Board
- 1 × 433MHz RF Transmitter Module Board
Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: Is this 433MHz RF module pair compatible with Arduino and Raspberry Pi?
A: Yes! The 433MHz RF wireless receiver and transmitter modules operate at DC 5V, making them directly compatible with Arduino boards and Raspberry Pi projects (with appropriate level shifting for 3.3V GPIO). They work seamlessly with popular libraries like RCSwitch and RadioHead for quick integration.
Q: What is the difference between ASK and OOK modulation on these RF modules?
A: ASK (Amplitude Shift Keying) is a general modulation scheme where data is encoded by varying the amplitude of the carrier signal. OOK (On-Off Keying) is a specific subset of ASK where the carrier is simply switched on and off to represent binary data. Most 433MHz super-regeneration modules like this one use OOK as the default method — simple, efficient, and widely supported by microcontroller libraries.
Q: What is the typical transmission range of this 433MHz RF module pair?
A: In open air, this 433MHz RF transmitter and receiver module pair can typically achieve ranges of 20–200 metres depending on the antenna used, supply voltage, and surrounding environment. Adding a simple wire antenna (approximately 17cm for 433MHz) to the ANT pin on both modules significantly improves range and signal reliability.
Q: Do I need any additional components to start using these RF modules?
A: The modules are self-contained and require only a DC 5V power supply and a microcontroller to begin transmitting and receiving data. For best performance, attach a short wire antenna (~17cm) to each module's antenna pad. No external RF components or filters are required for basic ASK/OOK wireless communication.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.