http://www.pprune.org/tech-log/570284-can-smoke-detectors-really-detect-methane.html
inteersting info - a one minute read if you dont read this - you wont learn about the sheep angle -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/massfire. For more options, visit https://groups.google.com/d/optout.
