The main types of personnel sensors are explained in Reference Notef11, Personnel Sensors. Most lighting applications favor passive infrared detectors. Many inexpensive models are available that replace existing light switches, without further wiring or installation work. These units are a major breakthrough in lower cost and ease of installation. However, these advantages tempt people to use them in locations where they cannot provide satisfactory performance. In many cases, only ceiling mounted sensors are satisfactory, and these are expensive to install.
Passive infrared sensors are now commonly built in to flood lamp fixtures, intended primarily for exterior applications. Integral motion sensors are starting to appear in other types of light fixtures. Check the latest catalogs.
The main types of personnel sensors are explained in Reference Notef11, Personnel Sensors. Most lighting applications favor passive infrared detectors. Many inexpensive models are available that replace existing light switches, without further wiring or installation work. These units are a major breakthrough in lower cost and ease of installation. However, these advantages tempt people to use them in locations where they cannot provide satisfactory performance. In many cases, only ceiling mounted sensors are satisfactory, and these are expensive to install.Passive infrared sensors are now commonly built in to flood lamp fixtures, intended primarily for exterior applications. Integral motion sensors are starting to appear in other types of light fixtures. Check the latest catalogs.
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