What is the most accurate thermometer for home use?

Thermometers are varied, each with its age and usage characteristics (as shown in the table), and consumers have the flexibility to choose according to their needs and usage scenarios.

Mercury thermometer suitable for all ages to use, with low price, high precision advantages, the disadvantage is that temperature measurement needs at least 5 minutes, temperature measurement period to maintain a fixed posture, infants and young children use poor compliance;

Electronic thermometers are also available for all ages, with easy carrying, easy readings, high accuracy, memory and beeping prompts. However, the thermometer should be placed in the armpits, mouth or anus, and fixed posture, infants and young children use less compliance. Electronic thermometers are also susceptible to interference from nearby electromagnetic fields such as mobile phones and running refrigerators, washing machines, microwave ovens, etc., affecting the accuracy of readings, and insufficient battery power can also affect temperature accuracy.

The age of application of the ear thermometer is more than 6 months, because the ear canal needs to be straightened when using the ear thermometer, which may cause resistance from the subject, and is not recommended for infants under 6 months of age. Ear thermometer has the advantages of fast temperature measurement, accurate reading and easy to use. When using ear temperature timing, it should be noted that the operating ambient temperature should be 16 to 35 degrees C, the accuracy of the measurement also depends on the ability of its infrared harness to reach the tympanic membrane, if the measured person has more eardrums or a small bend in the ear canal, the measured value may be biased;