Elecrow
2 Channels RF Remote Control Module DC 5V
The 2-Channel RF Remote Control Module is a wireless relay controller operating on 433MHz. It comes with a 3-button RF remote that can toggle each relay inde...
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The 2-Channel RF Remote Control Module is a wireless relay controller operating on 433MHz. It comes with a 3-button RF remote that can toggle each relay independently, making it ideal for wirelessly controlling appliances, lights, motors, and other equipment.
The module features high-current latching relays with passive output, LED indicators for relay status, and a standard interface for direct microcontroller control. It operates on 5V DC with a quiescent current of just 6mA.
Key Features
- 2 Latching Relay Channels – Self-locking relays with passive output
- 433MHz RF Wireless – 15–30 metre remote control range
- 3-Button Remote Included – Control each channel independently
- High-Current Relays – Rated for 10A at 250V AC or 10A at 30V DC
- LED Status Indicators – Visual feedback for each relay state
- Microcontroller Compatible – Standard interface for direct MCU control
Specifications
- Working Voltage: DC 5–5.5V
- Working Current: ~140mA
- Quiescent Current: ~6mA
- Max Load: 10A at 250V AC / 10A at 30V DC
- RF Frequency: 433MHz
- Remote Range: 15–30 metres
- Work Mode: Self-locking (latching)
- Module Dimensions: 53 × 40 × 20mm
Ideal For
- Wireless appliance and lighting control
- Home automation projects
- Remote motor and pump switching
- Gate and door control systems
Package Contents
- 1× 2-Channel RF Relay Module
- 1× 3-Button RF Remote Control
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- Relay module
- A relay module uses an electrically controlled switch to let a low-power microcontroller control a separate circuit. It matters when switching devices that need different voltages or more current than a microcontroller pin can safely handle.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
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