433MHz RF Wireless Module DC 3V–24V | Transmitter & Receiver
433MHz RF Wireless Module DC 3V–24V | Transmitter & Receiver
433MHz Universal RF Wireless Module – Wide Voltage, Long Range
Take your DIY electronics projects to the next level with this compact 433MHz Universal RF Wireless Transmitter/Receiver Module. Designed for makers, hobbyists, and engineers alike, this miniature module delivers rock-solid wireless communication over distances of 100m–300m in open terrain — all while running on a wide supply voltage range of DC 3V to 24V. Made in Mainland China.
Key Features
- Wide Voltage Compatibility: Both transmitter and receiver operate on DC 3V–24V, making it compatible with a huge variety of microcontrollers and power supplies.
- Long Transmission Range: Achieves 100m–300m in open, unobstructed environments — perfect for remote switching and automation projects.
- Four Programmable Operating Modes: Instant, Toggle, Lock, and Delay — easily configured for virtually any switching requirement.
- High Load Capacity: Maximum load of 2A allows direct control of high-power LED lighting and various electrical appliances.
- Ultra-Low Power Consumption: Only 5–6mA during transmission; zero standby draw when idle, extending battery life in portable applications.
- Signal Penetration: Wireless signals pass reliably through walls, floors, and doors for stable, whole-building coverage.
- Simple Wiring & Setup: Clear, beginner-friendly connections with straightforward reset and programming procedures.
- Frequency: 433–433.92MHz | Transmission Power: ≥10 dBm | Package: TQFP
Technical Specifications
| Operating Voltage | DC 3V – 24V (Transmitter & Receiver) |
| Frequency | 433 – 433.92MHz |
| Transmission Power | ≥10 dBm |
| Transmission Range | 100m – 300m (open terrain) |
| Power Consumption | 5–6mA (active); 0mA (idle) |
| Max Load | 2A |
| Operating Modes | Instant, Toggle, Lock, Delay |
| Package Type | TQFP |
| Origin | Made in Mainland China |
Typical Applications
- Wireless remote switches & smart home automation
- Remote motor control systems
- Security & access control systems
- Remote LED lighting control
- DIY IoT and microcontroller projects (Arduino, ESP32, Raspberry Pi, etc.)
What's in the Box
- 1× 433MHz RF Module (Transmitter or Receiver — as selected)
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Frequently Asked Questions
Q: What is the operating range of this 433MHz RF wireless module?
A: The 433MHz RF module achieves a transmission range of 100m–300m in open, unobstructed terrain. Walls, floors, and doors may reduce this range but the module is designed to maintain reliable signal penetration in typical indoor environments.
Q: What voltage does the 433MHz RF transmitter and receiver module require?
A: Both the transmitter and receiver modules operate on a wide voltage range of DC 3V to 24V, making them compatible with common microcontrollers such as Arduino (3.3V/5V), ESP32, and higher-voltage systems up to 24V.
Q: What operating modes are available on this RF module?
A: This module supports four programmable operating modes: Instant (momentary), Toggle (on/off flip), Lock (latching), and Delay (timed output) — giving you flexible control for a wide range of wireless switching applications.
Q: Can this module control high-power LED lights or appliances?
A: Yes. The module supports a maximum load of 2A, making it suitable for directly controlling high-power LED lights and small electrical appliances without the need for an additional relay in many setups.
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.