2-Channel 5V Relay Module with Optocoupler and 433MHz RF Remote Control

The 2-Channel 5V RF Relay Module is a reliable and easy-to-use solution for wirelessly controlling high-voltage or high-current devices using a 433MHz RF remote control. Designed for DIY electronics, home automation, and student projects, this module allows you to switch appliances safely without direct wiring to the control source.

With optocoupler isolation, the relay board protects sensitive microcontrollers such as Arduino, ESP32, ESP8266, and Raspberry Pi from electrical noise and voltage spikes. Each relay supports high load capacity, making it suitable for controlling lights, fans, motors, and other AC/DC appliances.

🔹 Key Features

• Wireless RF Control (433MHz)
  Control devices remotely without Wi-Fi or Bluetooth.

• 2 Independent Relay Channels
  Switch two separate devices independently.

• Optocoupler Isolation
  Protects your microcontroller from high-voltage interference.

• High Load Capacity
  Supports up to 10A @ 250V AC or 10A @ 30V DC per relay.

• 5V Operating Voltage
  Compatible with Arduino and other 5V logic systems.

• LED Status Indicators
  Easily monitor relay ON/OFF status.

• Screw Terminal Connectors
  Safe and convenient wiring for high-power devices.

🔧 Technical Specifications

• Relay Channels: 2

• Operating Voltage: 5V DC

• Control Type: 433MHz RF Wireless

• Maximum Load:

  • AC: 250V / 10A

  • DC: 30V / 10A

• Isolation: Optocoupler

• Compatibility: Arduino, Raspberry Pi, ESP32, ESP8266

🏠 Applications

• Home Automation (lights, fans, appliances)

• Wireless switch systems

• Garage door control

• Motor ON/OFF control

• Smart DIY and college projects

• High-power load switching