Re: Max/min thermometer.

In article <4609b15a@xxxxxxxxxxxxx>, reply@xxxxxxxxxxxxxx says...

"Geoff" <NOJOY@xxxxxxxxxx> wrote in message
news:aYbOh.8386$F82.1471@xxxxxxxxxxxxxxxxxxxxxxx
On Sunday I paid £9.99 at a garden centre for a max/min thermometer: it
worked for one day before the iron wire within it sank below the surface
of the blue liquid on the max temp' side and the thing became n.b.g.!

Today I took it back and was refunded the money.

On my way home I called at an ironmonger's and asked them if they had a
max/min thermometer. "In all honesty I could not recommend buying one
from anywhere if it has a blue liquid in it." one of the assistants told
me. I explained what had happened to the one I'd bought and the assistant
said, "It's the b----- EU and a directive about mercury I've been told!
We had some with mercury in and they worked a treat but we had to return
them and were sent those useless things which we've now got rid of back to
the supplier."

Now my question is, "Can anybody recommend a make of max/min thermometer
which works and does not cost more than about a tenner?" I do not want an
electronic one.

Geoff


It was decreed that putting mercury metal in the hands of the great unwashed
( the public) was not a good thing:-)
Pretty nasty stuff -so use blue or red dyed alcohol as an alternative.
Totally accurate and environmentally sound.

except that mercury has a density greater than the little iron pin so it
will float on the surface whereas alcohol has a desnsity considerably less
than iron so the little pin will sooner or later sink. Iron pins so that you
can reset with a magnet.

GillM

.

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