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![58000-600SIL - Discovery Optical Smoke Detector [SIL2]](https://www.apollo-fire.co.uk/globalassets/syncforce/main-product-image/E0000411_0001.jpg?width=450 "58000-600SIL - Discovery Optical Smoke Detector [SIL2]")
58000-600SIL - Discovery Optical Smoke Detector [SIL2]
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Components inside an optical smoke detector showing the black optical smoke detection chamber where light scattered by smoke particles is detected Stock Photo - Alamy
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