433MHz 1-Ch RF Relay Receiver Wireless Remote Switch Module
433MHz 1-Ch RF Relay Receiver Wireless Remote Switch Module
433MHz 1-Channel RF Relay Receiver — Wireless Remote Control Switch Module
Take control of your lighting setup without running a single wire. This compact 433MHz 1-Channel RF Relay Receiver Module lets you wirelessly switch LED light strings, Christmas tree lights, low-voltage lamps, and other DC-powered loads — all from up to 30–50 metres away in open areas. At just 22.5 mm × 11 mm × 8 mm, it tucks neatly into virtually any enclosure or project.
Key Features
- Wide Input/Output Voltage: DC 3.6 V – 24 V, making it compatible with a broad range of low-voltage setups
- Three Working Modes: Momentary, Toggle, and Latching — choose the behaviour that suits your application
- High-Sensitivity Reception: ≥ −107 dBm sensitivity ensures reliable signal pick-up
- Ultra-Low Power Draw: Static current of only 3.6 mA – 5.5 mA keeps energy consumption minimal
- Maximum Load: 2 A — suitable for LED strings and low-power DC devices
- Supports Up to 10 Remote Controls: Store multiple transmitters using the simple Learning Button pairing process
- Coding Format: 1527 learning code with ASK (superheterodyne) modulation
- Operating Temperature: −20 °C to +80 °C for reliable year-round use indoors or in sheltered outdoor spaces
- Wireless Range: 30–50 m in open areas (range varies with obstacles, walls, and nearby metal enclosures)
Technical Specifications
| Working Frequency | 433 MHz |
| Modulation | ASK (Superheterodyne) |
| Input Voltage | DC 3.6 V – 24 V |
| Output Voltage | DC 3.6 V – 24 V |
| Maximum Load Current | 2 A |
| Static Current | 3.6 mA – 5.5 mA |
| Reception Sensitivity | ≥ −107 dBm |
| Stored Remote Controls | Up to 10 |
| Working Modes | Momentary / Toggle / Latching |
| Operating Temperature | −20 °C to +80 °C |
| Dimensions | 22.5 mm × 11 mm × 8 mm |
What's in the Box
- 1 × 433MHz 1-Channel RF Relay Receiver Switch Module
Ideal For
- LED lamp strings and decorative lighting
- Christmas tree and holiday light control
- DIY home automation and smart-switch projects
- Low-voltage DC switching applications
- Makers, hobbyists, and electronics enthusiasts
For general guidance on safe DIY electrical and electronics projects, visit the U.S. Consumer Product Safety Commission (CPSC) for consumer safety resources.
Frequently Asked Questions
Q: What devices can I control with this 433MHz RF relay receiver module?
A: This 433MHz 1-channel RF relay receiver module is designed for low-voltage DC applications (3.6 V–24 V, up to 2 A). It works great with LED light strings, decorative lamp strings, Christmas tree lights, and other compatible low-power DC devices. It is not intended for mains AC circuits.
Q: How do I pair a remote control transmitter with this receiver module?
A: Pairing is straightforward using the onboard Learning Button. Press the button to enter learning mode, then press the desired button on your 433MHz transmitter — the module will store the code. You can store up to 10 different remote controls. The module supports 1527 learning-code format transmitters.
Q: What is the difference between Momentary, Toggle, and Latching modes?
A: Momentary mode activates the relay output only while the remote button is held. Toggle mode switches the relay on or off with each button press. Latching mode keeps the relay in its last state (on or off) until the next command is received — ideal for lights you want to stay on without holding the button.
Q: What affects the wireless range of this RF receiver?
A: In open areas, the module can typically reach 30–50 metres. Walls, metal enclosures, electronic interference, and other physical obstacles will reduce the effective range. Positioning the receiver away from large metal surfaces and interference sources will help maintain the best possible range.