Thermometer

Key Measurements Obtained
Digital Thermometers : These are the most common type for measuring body temperature. They use electronic sensors to detect temperature and display the result digitally on a screen.
Key Features :
Fast readings, usually in 10–30 seconds.
Can be used orally, under the arm (axillary), or rectally (for infants).
Some models have flexible tips for added comfort.
Can be used for both adults and children.
Often come with memory features to track past measurements.
Easy to use, fast, accurate, and safe.

Ear (Tympanic) Thermometers : Measures temperature by detecting infrared heat emitted by the eardrum. These are often used in medical settings or at home for quick readings, especially for children.
Features:
Provides results in seconds.
Easy to use, especially for babies and young children.
Often comes with disposable covers for hygiene.
Fast and non-invasive.

Forehead (Temporal Artery) Thermometers : Uses infrared technology to scan the temporal artery in the forehead. These thermometers are commonly used for fast and non-invasive readings.
Features:
Results are typically available within a few seconds.
Ideal for children or when a non-invasive method is preferred.
Can often be used without touching the skin, which makes it hygienic.
Fast, easy, and non-invasive.

Mercury Thermometers (less common now) : Measures temperature through mercury inside a glass tube. When exposed to heat, the mercury expands and moves along the scale, indicating the temperature.
Features:
Accurate readings.
Used to be the standard for body temperature measurement.
High accuracy.