Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level ...

You might think aftermarket parking sensors could be a bit of an unusual car upgrade at first, a bit like aftermarket reversing cameras, and you’d be right. Across ...

If you're also looking to illuminate pathways, entryways, or doorways, the right motion sensor lights can make all the difference. Today's best options use a combination of powerful brightness ...

Yet, they keep anyone from getting in without your knowledge. But, without an understanding of how they work you might miss some crucial maintenance steps every door sensor needs to stay functional.