Hi - where can I get a good-quality air thermometer, i.e. that is
accurate, robust, and has a big range (ideally -50 to +50 but -40 to +40
would do [°C]).
I don't trust those cheapo ones with a bimetal coil and attached needle.
I'm not too sure of the cheapo LCD-display ones either.
For external accurate comparisons (ie met office standard) you will also
need a Stephenson Screen set 1.5m above cut grass away from the house.
Beware Oregon electronic devices which are appallingly inaccurate.
Very lucky. You happened to get a relatively good one. Someone has to.
Speaking to one supplier a few years ago, he noted that for fun they got a
number going together in the same place and noted a difference of over 2.5
degrees between them.
Theres no such thing unless youre willing to pay real money. The usual
household glass tube ones are always fragile, the metal spring ones
can be very inaccurate. The digitals are much better, but again arent
exactly built to last.
If youre serious you need a comercial electronic thermometer, but
expect to pay 3 figures. It will however give you everything youre
asking for, plus at least 0.1C accuracy.
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