ShillehTek 433MHz RF wireless transmitter and receiver modules with coils

433MHz RF Wireless Transmitter & Receiver Link Kit for Arduino

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433MHz RF transmitter/receiver kit for Arduino, includes TX/RX pair for easy wireless links. Ideal for remote controls, weather stations or alarm systems; compatible with VirtualWire/RadioHead.

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Overview

Product Overview

Cut the wires and add wireless capability with this 433MHz RF Link Kit for Arduino, a compact, affordable solution that ships as a complete TX/RX pair (small square transmitter and long rectangular receiver) to create a reliable short-to-medium range data link for remote controls, weather stations and alarm systems. Using stable ASK modulation, compatible with VirtualWire and RadioHead libraries, it sends text and sensor data via simple digital pins, can reach up to 100m in open air and is extendable with a 17cm wire antenna while remaining suitable for low-power battery nodes.

Questions & answers

Frequently asked questions

The kit is intended for Arduino projects and is compatible with the VirtualWire and RadioHead libraries. It uses simple digital I/O pins to send basic text or sensor data between the included transmitter and receiver modules.
It ships as a complete TX/RX link kit with a small square transmitter and a long rectangular receiver. Connect each module to your microcontroller’s power, ground, and data pins, then use a supported RF library to encode messages.
The link operates at 433MHz using ASK modulation. Data is handled through digital pins rather than SPI, I2C, or Wi-Fi, making it suitable for simple one-way wireless messages such as text strings or sensor readings.
It is well suited to short-to-medium range Arduino wireless projects such as remote controls, weather stations, alarm systems, and battery-powered sensor nodes. It is best for small data payloads rather than high-speed or internet-connected communication.
The listed range is up to 100m in open air, so walls, metal enclosures, weak power, antenna placement, and local RF noise can reduce distance. A straight 17cm wire antenna can help improve performance.

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What's included

Features & Specs

433MHz Wireless Link Operates on the common 433MHz band for reliable short-to-medium range communication.

TX and RX Pair Includes both compact transmitter and receiver modules for an immediate wireless link.

ASK/AM Modulation Uses simple Amplitude Shift Keying modulation for easy digital interfacing.

Arduino Library Support Compatible with VirtualWire and RadioHead libraries for fast prototyping.

Extendable Range Range can be increased up to about 100m in open air by adding a 17cm wire antenna.

Low Power Standby Transmitter draws minimal power when idle, suitable for battery-powered sensors.

Simple Arduino Interface Connects to Arduino digital pins for straightforward sending and receiving of data.

Reference

Documents

Full Product Manual ShillehTek 433MHz RF Wireless Transmitter Receiver Link Kit for Arduino | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

Datasheet

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