Which is more accurate digital or glass thermometer?
Which type of thermometer is most accurate?
What type of thermometer is most accurate? Digital oral and rectal thermometers are the most accurate. Rectal thermometers, while they may not be used widely for at-home use, are the better measure of core temperature.23 Nov 2021
Which is more accurate digital or glass thermometer?
Digital thermometers are safer to use Mercury thermometers are most often made of glass, which is inserted into food to gauge the temperature. However, glass is very fragile, which means, it can easily become broken.16 Jan 2019
Why are glass thermometers not recommended?
Liquid in glass thermometers tend to be fragile and hence easily broken, can only be used where the liquid column is visible, cannot be used for surface temperature measurements, cannot be read from a distance and are unsuitable for high temperature measurements.
Are mercury thermometers banned in the US?
Since 2001, 20 states have banned mercury “fever thermometers” for medical use, and regulations tighten every year. It's a neurotoxin—exposure can cause tremors, partial blindness, deafness, memory loss, and many, many other problems—and, if mercury does spill, it's very hard to clean up.1 Mar 2011
Do they sell thermometers with mercury?
The oldest thermometers used are mercury in glass. Newer thermometers include non-mercury liquids in glass and digital and electronic devices that use sensors to measure temperature. Thermometers that check body temperature in the ear, across the forehead, or have a digital display do not contain mercury.
How long do you leave a glass thermometer in your mouth?
Tell your child to keep the lips firmly closed. If your child cannot hold the thermometer in place with his tongue and fingers without biting it, hold it in place for him. You will hear a beep in about 30 seconds. For glass thermometers, hold in place for 3 minutes.
How long do you leave mercury thermometer in mouth?
By mouth. Insert the thermometer's probe under your tongue and close your lips over it tightly to hold it in place. Leave it in your mouth for three minutes or until it beeps. In the armpit (also called the axillary method).16 Apr 2020
How do you take oral temperature with a glass thermometer?
With your mouth open, put the end with the red, blue, or silver-colored tip under your tongue. Close your lips gently around the thermometer. Do not bite the glass thermometer. Keep the thermometer under your tongue for 3 minutes.5 Jan 2022
Are glass oral thermometers accurate?
The accuracy of a typical glass thermometer is ±1 scale division. These are available in partial immersion or total immersion types and typically have to be considerably longer to achieve the same specifications as a mercury thermometer.20 Jul 2021
Which is more accurate thermometer digital or mercury?
Both laboratory and clinical studies show that there is no significant difference in the average accuracy of the two types of thermometers, however there is a greater fluctuation of readings of temperature when using electronic thermometers.