433MHz RF Transmitter & Receiver Wireless Module

The 433MHz RF Transmitter & Receiver Wireless Module is a one-way radio communication pair that sends digital data wirelessly at 433MHz using ASK (Amplitude Shift Keying — a method where signal strength changes carry data). The 433MHz RF Wireless Module transmitter runs on 3V to 12V, while the receiver uses a fixed 5V supply, and together they reach approximately 50 meters in open space. Data moves at up to 4.8 kbps, which is adequate for simple button press commands, sensor flags, and digital bit streams between boards.

The RF Module uses an open antenna design, so adding a 17cm wire antenna to the transmitter immediately extends range. The honest trade-off is that the module has no built-in encoding. Without an encoder-decoder pair, the receiver picks up noise as random data. The rf wireless transmitter receiver module datasheet confirms this — always pair it with encoder and decoder ICs for reliable data.

The 433mhz rf module pinout is straightforward. Students building wireless bells or switches, hobbyists making remote sensors, and makers needing simple one-way data links all use this pair. Connect data pin to a GPIO, pair with an encoder, and test with the Arduino IDE serial monitor. StemVolt stocks this module for fast delivery across India.

Related Products:

• Explore the 2-Channel RF Wireless Relay Remote Control Transmitter and Receiver Module

Features:

• 433MHz ISM band — India compliant unlicensed short-range RF frequency
• Transmitter 3V to 12V increases range at higher supply voltages
• External antenna support extends range beyond standard 50-meter baseline
• DATA VCC GND three-pin interface for direct Arduino GPIO connection
• Compatible with VirtualWire and RadioHead 433MHz Arduino libraries

Technical specifications:

 Applications:

• 433MHz RF Module used for Arduino wireless sensor data link build
• College project uses 433MHz RF Wireless Module for RF sensor demo
• RF alarm system uses 433mhz rf transmitter receiver for trigger signal
• Custom remote uses rf module for encoded Arduino multi-command RF control
• Wireless logger uses 433mhz rf module for outdoor sensor data uplink

Package includes:

• 1 x 433MHz RF Transmitter & Receiver Wireless Module