Good infrared thermometer with warm-up time

Accuracy: According to the manual, the thermometer is only accurate when it was able to adapt to the ambient temperature beforehand. I can confirm that in practice: you go into significantly colder rooms or even outside, then the measurement uncertainty can be 5 ° C or more.
One should the thermometer so about 20-30 minutes, giving in each environment, time to adapt.
The handle is actually a hole for a wrist strap, it is but not when.