We mow know that this is a pointless thing for many viruses and bacterial
infections, unless you catch it at the exact time.
Be better off getting that test system more reliable and faster than
faffing about with infra red temperature guns.
Brian

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"Andy Burns" wrote in message
...
Harry Bloomfield wrote:

What's the difference between the usual DIY IR guns and the ones which
they are using (Asia) to check body temperature in the epidemic?

very little I suspect, they do vary in the angle of the measuring "cone"