2-Channel RF Wireless Relay Remote Control Transmitter and Receiver Module

The 2-Channel RF Wireless Relay Remote Control gives you two independently switchable relay outputs controlled from a small handheld transmitter over RF (Radio Frequency). It operates at 315 or 433 MHz, the two most common unlicensed radio frequencies for short-range remote control in India. The 2 channel rf wireless remote control module accepts a supply voltage anywhere between 5V and 12V DC, which means it works off a USB power bank, a wall adapter, or a car battery without any extra regulator.

The 2 channel rf transmitter and receiver module uses an SPDT relay (Single Pole Double Throw — a relay with both a normally open and a normally closed contact). One non-obvious detail — because you get both contact types per channel, you can use this module to switch between two circuits, not just turn one on and off. That doubles the wiring options for each channel. The honest limitation is range — 50 meters is the open-air figure. Through two concrete walls in a building, expect 10 to 15 meters realistically.

The rf module receiver board connects to Arduino or any microcontroller through the relay output pins for automated or manual switching. Home automation hobbyists, electrical engineering students, and small business installers all use it for light and appliance control. To start, power the receiver from a 5V to 12V supply, press Button A on the transmitter, and Relay 1 clicks. StemVolt provide the transmitter and receiver module at best price.

Related Product:

• Check out the 4 Channel IR Infrared Tracing Sensor Module

Features:

• Operating voltage range from 5V to 12V DC lets you power the receiver from most available supplies
• Frequency at 315 or 433 MHz keeps the signal clear of Wi-Fi and Bluetooth interference bands
• 2-ch Transmitter and Receiver Module range up to 50 meters covers most room-to-room indoor control needs

Technical specifications:

Applications:

• 2 channel rf relay module controls two solenoid valves in a drip irrigation system at 433 MHz
• Garden light switch uses this to turn outdoor lights on remotely without running extra wiring
• 2-Channel RF Wireless Relay Remote Control opens a gate motor by triggering relay output at 10A
• Home automation panel uses relay outputs to switch two AC circuits based on transmitter button press

Package includes:

• 1 x 2-Channel RF Wireless Relay Remote Control