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Forum: µC & Digital Electronics Smoke detector upcycling?


Author: Mike (Guest)
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Hi,
got a box full of 10+ years old, working smoke detectors..

Any ideas how to use them?

(No, I don't want to use them as secondary smoke detectors..)

Author: Ulrich (Guest)
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You could use the particle sensor in them to build an air quality 
measurement unit.

Author: Jacko (Guest)
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Why do you write "working"?
Usually there is no warranty beyond 5 years.

Find your local scrap acceptance in the yellow pages...

Author: Kayla Caraway (Guest)
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I agree with @Jacko. Most of the smoke detectors has no warranty beyond 
5 years.

Author: Kayla Caraway (Guest)
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I think you need to check out your smoke detector by consulting some 
professional. You need make sure that they are working with lighting a 
match and letting the smoke go into the detectors. If it's not working 
properly, then you should buy a new smoke detector and hire your local 
electricians to install it. I too had installed new smoke detector by 
hiring some electricians Havertown PA (https://www.dndenergy.com) where 
they installed it and performed an effective smoke detector test.

Author: Udo Schmitt (urschmitt)
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Mike wrote:
> Any ideas how to use them?

Your question is not clear.
Do you want to use them as smoke detectors, or do you want to build 
something else out of them?

You should not use it as smoke detectors any more as the detection unit 
gets more and more dirty and the sensor is getting blind over the years.

As an Idea: use them as a signal horn for a water detector unit, for 
example to detect water underneath a dish washer or a washing machine.

: Edited by User
Author: Christoph Kessler (db1uq) (christoph_kessler)
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What sensor do they use - radioactive or light?

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