How a smoke detector works

[Joseph Bento]

Speaking of which....  Here in the USA, anyway, it is time Daylight Savings again, and time to change the batteries in your smoke detectors.

Joe, N6DGY

On Mar 13, 2011, at 9:43 AM, Frank Gentges wrote:

> Tacoistas,
> 
> This is a nifty video that explains how these things work.
> 
> See
> 
> http://tinyurl.com/4juu8ls
> 
> Frank K0BRA
> 
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