"Richard Griffith" wrote in message
...
snip I've heard various stories/comments over the years
about the idea of 'slinging' 2 glass thermometers around your heard
on a wood/plastic frame can/does have its problems (How sturdy are
they against breakage etc) but if they give you accurate data then
it may be worth getting one.


.... bought mine from Casella back in the 1970s (?1975 I think). Still
got it, still works fine - never any problems with breakage (if the
thermometers are held firmly in the 'cage' then there should not be);
problems to watch out for are of course getting into the routine of
reading the value quickly (and that gets difficult as you get older
and the eyes don't focus so well), shielding from the sun, choosing a
spot which represents where you are trying to measure data etc.

Also, I find, even after all these years, that the process of getting
the wick sleeve onto the wet bulb is fiendishly difficult! It's
annoying as the wick should be un-contaminated by dirt, grease etc.,
and handling via fingers isn't advised!

Otherwise - get one - makes you stand out from the crowd when you're
using the thing in the back garden - and is a great conversation
starter!

Martin.


--
Martin Rowley
E:
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