Motion detectors

Never again will you have to fumble around for the light switch in the dark: a motion detector automatically switches on the light when it senses movement in the stairwell or in front of your front door. Not only is this convenient, it also deters uninvited visitors. Presence detectors do even more: they react to the presence or absence of people and the incident daylight, and adjust the lighting accordingly. This makes them useful for saving energy in office buildings and hotels.