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Question:

Which is most sensitive heat detector?pin diode,vacuum tube,bolometer or fuse?

Which is most sensitive heat detector?pin diode,vacuum tube,bolometer or fuse?

Answer:

For home use, no. For commercial use, when it is brand new, no, but it will need an inspection sticker each year in the future. The fire inspector will check the tag to make sure it is not less than 12 months old.
Maybe your smoke detector is broken and need to be replace by a new one?

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