tag:blogger.com,1999:blog-8731389226927314853.post5792771744953235453..comments2024-03-28T11:43:47.709+04:00Comments on Britney of Arabia: Only in DubaiBritney of Arabiahttp://www.blogger.com/profile/02173893379600716517noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8731389226927314853.post-27684652290277926852009-09-24T15:28:40.117+04:002009-09-24T15:28:40.117+04:00Hi KH,
I'm not an expert, but I'm remotel...Hi KH,<br /><br />I'm not an expert, but I'm remotely familiar with fire-alarm since it's part of the trade.<br /><br />Fire detectors are two type: smoke and heat detectors. The latter type is used rarely. <br /><br />Smoke detectors are of varied technologies. Optical detection is one of them. This involves a beam of light running straight inside the small detector from point A to point B. When smoke enters the detector it deflects the beam and subsequently it goes off.<br /><br />Air particles like dust and whatnot CAN sometimes interfere with this light beam. I think the technician was making sure the beam was undisturbed by blowing on it :)Dubai Jazzhttps://www.blogger.com/profile/17951647402774044439noreply@blogger.com