Some HP monitors and laptops, such as the EliteBook, feature an ambient light sensor. This sensor detects the light level of the environment and adjusts the screen's brightness accordingly. If you ...

Photo: Mitchell Clark If you regularly change lenses on your camera, dust or debris will eventually end up on your sensor. There are things you can do to mitigate that, but any time you expose your ...

The knock sensor on your Toyota VVTi engine is basically a microphone that senses if detonation occurs in one of the cylinders. The detonation happens when the fuel-air mixture ignites before it ...