Brand new 20-pack of RCWL-0516 microwave Doppler radar motion detector sensor modules – these little boards are great for detecting motion through walls or in total darkness, unlike passive IR sensors.
They work by emitting microwaves and measuring the reflection shift – if something moves, the signal changes and triggers an output.
They're unbranded, made in China, but the RCWL-0516 is a well-known and loved sensor in the maker community.
Each module has 4 pins – VIN, OUT, GND, and 3.
3V – and works with 5V or 3.
3V logic.
Great for security projects, automatic lighting, presence detection, or anything where you need reliable motion sensing.
They're unaffected by temperature and work in all lighting conditions.
This 20-pack gives you plenty for prototyping or production.
No MPN or UPC, but model FZ2728 might be a batch identifier.
Perfect for Arduino, ESP, or Raspberry Pi projects – just wire it up, write a sketch, and detect movement like a pro.
