Digital thermometers take temperature very quickly and with 0.1 °C accuracy. You can choose between contact and non-contact, i.e. infrared thermometers.
A thermometer is indispensable for any household. They are easy to use, accurate, and since abnormal body temperature is a sure sign of a wide variety of health problems, prompt detection can be invaluable. In addition to the well-known mercury thermometers, the most common type are digital thermometers that show the taken temperature on a display.