Quote: eribanaut wrote in post #6
>my smoking vaporizer sometimes sets one or other off<
tells you a lot about the health giving properties of those then
Dave
Alarms just measure the parts per million of what is in the atmosphere ......still better than the fags
Dug up from my days at a nuclear power plant .......................
Most smoke alarms emit alpha radiation .........which is a comparitivly large slow moving particle ..........if the detector fails to see these particles then something is blocking them so the alarm goes off.
The reasoning behind this is a stream of alpha particles is emitted from an alpha source to a receiver and if the receiver fails to see them something is blocking them.
If you open this type of alarm and see the radiation symbol inside please don't worry too much as they are harmless enough and if you need to dispose of them please place them in the electrical disposal bin at your local council waste disposal area.