The 433MHz 2-Channel Wireless Relay Switch is a convenient remote-control switching solution for controlling two independent electrical devices wirelessly.

The receiver operates from AC 90–250V, making it suitable for both 110V and 220V AC systems. Each channel uses a relay with NO, NC, and COM terminals and supports loads up to 10A per channel for suitable resistive loads.

With multiple operating modes including Momentary, Toggle, and Latching, the module can be used for lighting, gates, garage doors, pumps, access control, and other remote switching applications.

The kit includes a 2-channel receiver and a 2-button 433MHz wireless remote control.

Key Features

• 2 independent relay channels
• 433MHz RF wireless control
• AC 90–250V operating voltage
• Compatible with 110V and 220V AC systems
• Up to 10A per channel for suitable resistive loads
• NO / NC / COM relay terminals
• 3 selectable operating modes
• Easy remote pairing using onboard learning button
• Supports multiple paired remote controls
• EV1527 / 1527 learning-code support
• Memory retention after power loss
• External spring antenna for improved reception
• Screw-terminal connections
• Protective plastic enclosure
• Compact 2-button handheld remote

Three Operating Modes

Momentary / Jog Mode

The relay remains activated only while the corresponding remote button is being operated, depending on the programmed receiver behavior.

Suitable for:

• Garage doors
• Gate controls
• Door release systems
• Momentary control applications

Toggle / Self-Lock Mode

Press the remote button once to activate the relay and press again to deactivate it.

Suitable for:

• Lighting
• Fans
• Pumps
• General ON/OFF control

Latching / Interlock Mode

Activating one channel switches the other configured channel off.

This mode can be useful for applications requiring mutually exclusive outputs.

Receiver Specifications

Wireless Control Range

Wireless operating distance depends heavily on the installation environment.

Typical stated ranges are:

• Indoor: Approx. 30–100m
• Open Area: Up to approximately 100–200m or more under favorable conditions

Actual range can be affected by walls, metal structures, electrical interference, antenna orientation, battery condition, and surrounding RF devices.

Remote Control Specifications

Easy Remote Pairing

The receiver features an onboard learning button, allowing compatible remote controls to be paired with the receiver.

Multiple compatible transmitters can be learned by a single receiver, making it possible for several users or locations to control the same equipment.

Relay Output

Each channel provides:

• COM – Common
• NO – Normally Open
• NC – Normally Closed

This gives greater flexibility when integrating the receiver with different switching and automation systems.

Applications

Ideal for:

• Garage door control
• Gate automation
• Lighting control
• Water pumps
• Access control
• Electric door systems
• Remote ON/OFF switching
• Home automation
• Industrial control
• Garden equipment
• DIY automation
• Wireless switching projects

Package Includes

• 1 × 2-Channel 433MHz Relay Receiver
• 1 × 2-Button 433MHz Remote Control

Important Safety Note

This module can operate directly from 110V/220V AC mains voltage. Installation should be performed by a qualified person using proper insulation, enclosure, wiring, protection, and electrical safety practices.

The 10A rating refers to suitable resistive loads. Motors, pumps, transformers, and other inductive loads can create significantly higher startup and switching currents, so they should not automatically be treated as 10A loads.

The 433MHz 2-Channel Wireless Relay Switch provides a simple and flexible way to remotely control two electrical circuits without requiring WiFi, an internet connection, or a separate smart-home hub.