If you have a K3 IR, they certainly can. Fast and reliable IR thermometer for temperature measurement at the entrances or ducts saves time and doesn't need human assistance. It can be mounted on a wall or a tripod. It is a practical and ready-to-use solution at a reasonable price.
Take heart and don’t get discouraged by falsely measured data. With the help of a very simple calibration of an industrial thermometer, you can also reliably measure the body temperature of the human body.