What is the approximate range using a 17 cm. antenna on each unit?

I have used these on several projects. The range with a proper length antenna and line of sight about 300 feet. In a building, walls, etc, 100 feet.

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5Pcs 433MHz RF Wireless Transmitter and Receiver Module Kit for Arduino/ARM/MCU, and for Raspberry pi

5Pcs 433MHz RF Wireless Transmitter and Receiver Module Kit for Arduino/ARM/MCU, and for Raspberry pi

Product ID: 461349566

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Details

Brand
Atnsinc
Product Dimensions
0.75"L x
Wireless Communication Standard
Radio
Compatible Devices
Speaker Car
Supports Bluetooth Technology
No

📏17cm antenna length recommended for optimal range

📡433MHz RF frequency for reliable wireless comms

🔋Low power consumption for efficient long-term use

Description

📡 Unlock wireless freedom with every signal sent!

ENERGY EFFICIENT DESIGN - Low power draw keeps your projects running longer without frequent battery changes.
PLUG PLAY COMPATIBILITY - Works smoothly with popular microcontrollers and home automation setups.
SEAMLESS WIRELESS CONTROL - Effortlessly connect Arduino, Raspberry Pi, or MCU devices without messy cables.
EXTENDED COMMUNICATION RANGE - Optimized 433MHz frequency and antenna design ensure robust signal over long distances.
VERSATILE REMOTE APPLICATIONS - Perfect for smart home devices like remote switches, alarms, gates, and more.

The Atnsinc 5-piece 433MHz RF Transmitter and Receiver Module Kit enables wireless communication for Arduino, ARM, MCU, and Raspberry Pi projects. Designed for home automation and remote control applications, it supports long-range, low-power RF transmission with recommended 17cm antennas (not included). Ideal for smart home integration, this kit offers reliable, cable-free connectivity for a variety of devices.

Specifications

Control Method	Remote
Controller Type	Remote Control
Control Type	Remote Control
Human-Interface Input	Unknown
Hardware Connectivity	Radio Frequency
Supported Application	remote control systems
Compatibility Options	Speaker, Car Stereo System, Home Stereo System, Headphone
Compatible Devices	Speaker, Car Stereo System, Home Stereo System, Headphone
AntennaDescription	The antenna is a 1/4 wavelength, 50 ohm single-core conductor, used for optimal receiving effect. The external antenna length for 433MHz is about 17cm for the receiver module and 25cm for the transmitter module, which should be coiled into a spiral.
Includes Remote	No
Voltage	3.5 Volts (DC)
Rechargeable Battery Included	No
Bluetooth support?	No
Wireless Compability	Radio Frequency
Audio Output Mode	Stereo

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