On Sat, 24 May 2008 at 08:06:57, Neil wrote in
uk.sci.weather :

*****
On a totally separate issue, I just bought myself a TN2 Infrared
Thermometer
http://www.thermometers4u.co.uk/details.cfm?prodID=38
Not because I intend to make serious use of it, but because I love
electronic gadgets (I bet I'm not alone in that here).
It's interesting to see the wide variation in surface temperatures
over very small distances, though.

Paul

Remember that the "sensing area" for laser infrared thermometers can be
quite large once the distance gets to a couple of metres or so.

People make the incorrect assumption that the temperature is read just
on the area of the laser spot.

So what is the laser spot for, then?
--
Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me)