Difference between revisions of "Motion detector"
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | Bewegungsmelder (Deut.); | + | Bewegungsmelder (Deut.); détecteur de mouvement (Fr.); detector de movimento (Port.) |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 06:51, 24 July 2013
Description
A device that is used to detect movement. Some motion detectors, such as the passive infrared detector (PIR) use an infrared sensor to monitor an area for heat sources. Other detectors use ultrasonic sensors. Many home systems combine ultrasonic and infrared detection. Older style motion detectors use a light beam/ detector combination that sets an alarm when the path to the detector is blocked.
Synonyms and Related Terms
Bewegungsmelder (Deut.); détecteur de mouvement (Fr.); detector de movimento (Port.)