433 MHz RF Transmitter & Receiver Module Pair

The 433 MHz RF TX & RX Module Pair is a compact, low-cost wireless communication solution designed for short-range data transmission. Operating on the license-free 433 MHz ISM band, this module pair is ideal for wireless control, remote switching, sensor data transmission, and DIY electronics projects.

It supports simple ASK/OOK modulation and can easily interface with popular microcontrollers such as Arduino, ESP8266/ESP32, PIC, and AVR boards.

Key Features

• Operates on 433 MHz ISM frequency band

• Low power consumption

• Compact and lightweight design

• Supports ASK / OOK modulation

• Easy interface with microcontrollers

• Stable performance for short-range communication

• Cost-effective wireless solution

• Separate Transmitter (TX) and Receiver (RX) modules

Technical Specifications

Transmitter (TX):

• Operating Voltage: 3V – 12V DC

• Operating Frequency: 433 MHz

• Output Power: Up to 10 mW

• Modulation Type: ASK / OOK

• Data Rate: Up to 10 kbps

• Antenna: External wire antenna (recommended)

Receiver (RX):

• Operating Voltage: 5V DC

• Operating Frequency: 433 MHz

• Sensitivity: –105 dBm

• Modulation Type: ASK / OOK

• Data Rate: Up to 10 kbps

• Antenna: External wire antenna (recommended)

Applications

• Wireless remote controls

• Home automation systems

• RF switches and relays

• Wireless sensor networks

• Robotics projects

• Arduino & IoT projects

• Alarm and security systems

• Garage door controllers

• RF data transmission experiments

Package Includes

• 1 × 433 MHz RF Transmitter Module

• 1 × 433 MHz RF Receiver Module

Additional Notes

• For best range and stability, use a 17.3 cm wire antenna.

• Encoding/decoding ICs (such as HT12E/HT12D) or libraries are recommended for reliable communication.

• This module pair is intended for short-range communication and educational or DIY use.