433MHz RF Wireless Relay Receiver & Remote Switch DC 3.6V–24V
433MHz RF Wireless Relay Receiver & Remote Switch DC 3.6V–24V
433MHz Wireless Remote Control Switch & Mini Relay Receiver
Take full command of your electronics without the hassle of running extra wires. This kebidumei 433MHz RF wireless relay receiver and transmitter kit lets you remotely switch DC-powered devices — from LED strips and lamps to water pumps, electric doors, and automated curtains — at distances of up to 100 metres in open space. With wide voltage compatibility (DC 3.6V to 24V), ultra-low standby draw, and a super-compact 34×15mm receiver footprint, it slips neatly inside almost any device enclosure.
Made in Mainland China. CE and FCC certified.
Key Features
- Wide Voltage Range: Works with DC 3.6V, 5V, 6V, 9V, 12V, 18V, and 24V systems — compatible with a huge range of DC motors and devices.
- RF 433MHz Signal: Reliable ASK modulation for stable, interference-resistant wireless communication up to 100m in open areas. Extend the antenna for even greater range.
- 3 Operating Modes: Choose Momentary, Toggle, or Latched mode to match your exact control needs.
- Multi-Remote Support: Pair up to 24 remote controls to a single receiver simultaneously — great for shared-access setups.
- Intelligent Learning Code: Simple pairing process; supports 1527 learning code encoding.
- Ultra-Low Standby Power: Only 4mA draw at rest — no wasted energy sitting idle.
- Max 10A Current: Handles a broad range of loads safely.
- CE & FCC Certified: Meets international safety and electromagnetic compatibility standards.
- No App Required: Pure hardware control — no smartphone, Wi-Fi, or account needed.
Specifications
| RF Frequency | 433 MHz |
| Working Voltage | DC 3.6V – 24V |
| Max Current | 10A |
| Standby Current | 4mA |
| Modulation | ASK |
| Operating Modes | Momentary / Toggle / Latched |
| Compatible Remotes | Up to 24 pcs |
| Receiver Size | 34 × 15 mm |
| Remote Size | 58 × 28 × 10 mm |
| Remote Battery | CR2032 (included) |
| Control Distance | Up to 100m (open space) |
| Certification | CE, FCC |
| Brand | kebidumei |
| Origin | Made in Mainland China |
Operating Modes Explained
Mode 1 – Momentary
Press & hold a button → device ON. Release → device OFF. Activate by pressing the learn button once.
Mode 2 – Toggle
Press a button → device ON. Press again → device OFF. Activate by pressing the learn button twice.
Mode 3 – Latched
Press button A → device ON. Press button B → device OFF. Activate by pressing the learn button three times.
Quick Setup Guide
- Reset: Press the learning button 8 times to clear all stored codes.
- Select Mode: Press the learning button 1×, 2×, or 3× to enter Momentary, Toggle, or Latched mode respectively. The LED will illuminate to confirm learning state.
- Pair Remote: Press the desired button on your remote control. The receiver LED will flash to confirm successful pairing.
- Wire Up: Connect receiver to your DC power source and load. That's it — start controlling!
Typical Applications
- LED strip & lamp remote switching
- Electric door and gate control
- Automated curtains and blinds
- Water pump remote switching
- Water heater control
- DC motor forward / reverse / stop control
- Custom DIY electronics and maker projects
What's in the Box
- 1× Mini RF 433MHz Relay Receiver module
- 1× 433MHz RF Remote Control transmitter (CR2032 battery included)
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Frequently Asked Questions
Q: What DC voltages is the 433MHz relay receiver compatible with?
A: The receiver operates across a wide range — DC 3.6V, 5V, 6V, 9V, 12V, 18V, and 24V — making it compatible with most common DC motors, LED systems, and electronics projects.
Q: How many remote controls can I pair to one receiver?
A: You can pair up to 24 remote controls to a single receiver at the same time, making it ideal for shared-access installations where multiple users need control.
Q: What is the difference between Momentary, Toggle, and Latched mode?
A: Momentary keeps the device on only while the button is held. Toggle turns the device on with one press and off with the next press of the same button. Latched uses two separate buttons — one to turn on and one to turn off — which is perfect for motor forward/reverse or two-state control.
Q: Does this module require an app or Wi-Fi connection?
A: No — this is a pure RF hardware solution. It operates entirely over the 433MHz radio frequency band with no smartphone app, Wi-Fi, Bluetooth, or internet connection required.
Q: What is the maximum range of the remote control?
A: In open areas with no obstructions, the transmitter can reliably reach up to 100 metres. Extending the receiver's antenna wire can further improve range and signal stability in enclosed or obstructed environments.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.