optical smoke detector

photoelectric smoke detector

A sensor used to initiate a fire alarm when smoke reduces the light received by a photoelectric cell in a device containing a light source; most effective in the early detection of fires in the smoldering stage.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
00:26Z 2600 SMOKE LAVATORY SMOKE: Optical smoke detector in toilet.
An optical smoke detector, distress alarm, SOS strobe and powerful LED torch all in one.
Instead optical smoke detectors were adopted as the most common solution.
Optical smoke detectors emit a beam of infrared or ultraviolet light which is either received by a separate device or reflected back.
Fortunately, optical smoke detectors are now available that can be tested by the so-called flashing-light method.
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