How accurate are handheld thermometers?

[YourDaddy]

So, in my building they gave a swimming pool guard something to do. At the enterance everyone's temperature is to be measured. Everything looks so professional. Ok, se here cums my turn and it's 34.5c

never mind i answered my own question

[Neverna]

How far was the guard away from you when he took the test?

I went shopping in Tesco's a couple of days ago. At the entrance of the store was a sign in English urging "Social Distancing", which by most reports I've read means stay away from other people by 1 or 2 metres. However, I was told to stand at the red line and have my temperature tested. The young woman taking the test stood on her red line, about half a metre away! Thainess. Bless 'em.