Of course, many different types of distance measuring sensors exist but not all sensors are the same. Each sensor has its own advantages and disadvantages. At its most basic level, a distance ...

Photoelectric sensors and light curtain sensors are among the most commonly used sensing devices in factories. Photoelectric ...

We live in a world which to some extent has been overrun by crime. Robberies, hooliganism, and other nefarious activities abound. Considering this situation, there has been a rise in the demand for ...

When you visit someone's house, you probably use the doorbell at the front door to let him or her know of your arrival. But a single doorbell in the lobby of a 20-story apartment complex doesn't make ...