433 MHz RF Module – FS1000A Transmitter & Receiver Pair for Arduino and Wireless Projects
The FS1000A 433 MHz RF Module is a simple and cost-effective wireless communication module set that includes a transmitter (Tx) and receiver (Rx). Operating at the 433 MHz ISM band, it enables wireless serial data transmission between two devices—making it ideal for short-range communication in home automation, wireless switches, alarms, sensors, and Arduino-based projects.
It uses ASK (Amplitude Shift Keying) modulation, ensuring a reliable signal with minimal interference in open environments.
Key Features:
433 MHz ISM Band Operation
Works in the unlicensed frequency band for universal use and compatibility.FS1000A Transmitter + Receiver Pair
Complete wireless solution for sending data between microcontrollers.ASK Modulation
Efficient for short-range, low-data-rate wireless communication.Up to 100 Meters Range (line of sight)
Effective for basic wireless applications with external antenna support.Microcontroller Compatible
Works with Arduino, ESP8266, ESP32, STM32, Raspberry Pi, and others.Low Power Consumption
Suitable for battery-powered devices and sensor nodes.
Applications:
Wireless control systems
Arduino-based home automation projects
Remote sensor data collection
DIY wireless switches
Wireless alarms and alerts
Communication between microcontrollers
Package Includes:
1 x FS1000A 433 MHz Transmitter Module
1 x 433 MHz Receiver Module
Specifications:
Transmitter (FS1000A):
Operating Voltage: 3V – 12V DC (typically 5V)
Frequency: 433 MHz
Modulation: ASK
Transmit Current: < 10 mA
Transmission Distance: Up to 100 meters (with antenna, line of sight)
Data Rate: 3 – 10 Kbps
Antenna Required: Yes (external wire antenna recommended)
Receiver:
Operating Voltage: 5V DC
Frequency: 433 MHz
Modulation: ASK
Receiver Sensitivity: -105 dBm
Data Rate: Up to 10 Kbps
Current Consumption: < 5.5 mA
Antenna Required: Yes
Weight and Dimensions:
Transmitter Module (FS1000A):
Dimensions: Approx. 19mm × 19mm × 7mm
Weight: Approx. 2g
Receiver Module:
Dimensions: Approx. 30mm × 14mm × 7mm
Weight: Approx. 3g
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