With the Exergen Temporal Artery Thermometer, a gentle stroke across a child's forehead captures the naturally emitted heat waves coming from the skin over the temporal artery to give a reading in 2 to 3 seconds. It can store up to eight readings. Make sure to keep your thermometer away from direct heat sources or sunlight as this will affect its accuracy.

Pros: Diverse way to read temps , can support multiple family members and keep temperature records separate, has great app features , contributes to public health researchDefined according to the triple point of water (where its solid, liquid, and vapor are in equilibrium), which is 273.16 K.

This is set by Hotjar to identify a new user’s first session. It stores a true/false value, indicating whether this was the first time Hotjar saw this user. It is used by Recording filters to identify new user sessions.A thermometer is an instrument we can use to measure temperature. An analog thermometer consists of a sealed tube with markings on it. These markings are increasing temperatures in Celsius or Fahrenheit. The markings on a clinical and weather thermometer are different, but they work in the same way. How does a Thermometer Work? from its voltage and current) allows us to calculate its temperature. Measuring extreme temperatures Use our brilliant Reading Temperatures Thermometer Worksheet for some great practice in how to read the temperature from a mercury thermometer. You can also take a look at this A Cold Snap Worksheet for some further practice with thermometer reading and some interesting facts all about temperatures in the coldest places on Earth! Among at-home thermometers, medical research hasn't determined an exact correlation between oral, rectal, ear, armpit, and forehead temperature measurements. But Kaiser Permanente notes that an ear (tympanic) temperature is0.5 to1 degree higher than an oral temperature and a forehead (temporal) scanner is usually0.5 to 1 degree lower than an oral temperature. Can I use my HSA/FSA funds to buy a thermometer? Empirically based temperature scales rely directly on measurements of simple macroscopic physical properties of materials. For example, the length of a column of mercury, confined in a glass-walled capillary tube, is dependent largely on temperature and is the basis of the very useful mercury-in-glass thermometer. Such scales are valid only within convenient ranges of temperature. For example, above the boiling point of mercury, a mercury-in-glass thermometer is impracticable. Most materials expand with temperature increase, but some materials, such as water, contract with temperature increase over some specific range, and then they are hardly useful as thermometric materials. A material is of no use as a thermometer near one of its phase-change temperatures, for example, its boiling-point.