Contact switches are the most frequently used pieces of alarm detection equipment and, interestingly, are the easiest to circumvent. They are typically applied to moveable doors and windows in both homes and businesses. They come in many shapes and sizes…

Let’s have a look at how an alarm system works. Sometimes I am truly amazed at how basic it can be. I think you will be too. You won’t need to be an electronics whiz. Just sit back, relax, and…