Which Thermometer Is Better Mercury Or Digital?

Can mercury kill you if you touch it?

Mercury is dangerous, and you need to be cautious not to be exposed to it directly for long periods of time, but simply handling it is not going to make you drop dead.

It’s like cigarettes; deadly over long periods of exposure, but you aren’t going to die if you walk into a smoky bar and have a drink..

Which type of thermometer is most accurate?

Rectal thermometers, which go into your rear end, are the most accurate, but they can be uncomfortable. Armpit, ear, and forehead thermometers aren’t as accurate. Most doctors think an oral thermometer, which you hold under your tongue, is best.

How accurate are non contact thermometers?

The sensitivity and specificity for the non-contact thermometer is 97%. The negative predictive value is 99%, which is especially important to rule out fever and avoid unnecessary laboratory work-up.

Can you still buy a mercury thermometer?

Those days have passed. Since 2001, 20 states have banned mercury “fever thermometers” for medical use, and regulations tighten every year. … But as of today the federal government has more or less killed the mercury thermometer in the United States—NIST has announced it will no longer calibrate mercury thermometers.

How long should you use a mercury thermometer?

After shaking the mercury down, place the thermometer under the child’s tongue, with the bulb toward the back of the mouth. Tell your child to keep the lips firmly closed, but not to bite the thermometer. 3. Leave the thermometer in place for 3 minutes.

Which company thermometer is best?

Our Top PicksBest Overall Thermometer: Kinsa Digital Ear Thermometer at Amazon. … Best Budget: iProven Oral and Rectal Thermometer at Walmart. … Best Forehead Thermometer: TrackAid Thermometer at Amazon. … Best Thermometer for Kids: Exergen Temporal Thermometer at Amazon. … Best No-Touch: Braun No Touch Thermometers at Walmart.More items…•

Is it safe to use a mercury thermometer?

The small silvery ball in a mercury thermometer can be dangerous if the glass breaks and the mercury is not cleaned up properly. The mercury will evaporate and can contaminate the surrounding air and become toxic to humans and wildlife.

What type of thermometer is most accurate for adults?

A rectal temperature is generally considered to be the most accurate, and the standard for monitoring the core body temperature, but it is generally not recommended for use in patients, due to the risk of rectal perforation and tears with this method. Have a separate thermometer to use for oral than for rectal.

Are old digital thermometers accurate?

“The most accurate thermometers were within 0.5 degree of our medical thermometer, and all but one were at least good at repeating a retaken temperature. … If you are looking for a way to get rid of that old standard thermometer, the EPA suggests giving it to your primary doctor since mercury is toxic.

Which is more accurate digital or mercury thermometer?

When used correctly, the digital thermometer is accurate enough to meet daily needs and safer than the mercury thermometer. More importantly, the temperature measurement is only a reference, whether to administer medicine to children or take them to the hospital depends on the judgment of symptoms and feelings.

What is the most accurate thermometer for home use?

Our pick. Vicks ComfortFlex. The best oral thermometer. … Our pick. iProven DMT-489. The best ear and forehead thermometer. … Runner-up. Sanpu Digital. A little slower and bulkier. … Runner-up. Kinsa Ear. Syncs with iOS or Android. … Also great. Braun No Touch Forehead Thermometer. Silent, but forehead only.

What are the disadvantages of digital thermometer?

The advantages of digital thermometers are that they are inexpensive, easy to read, require very little maintenance and give an accurate reading. The disadvantage is that they get damaged easily if dropped and the battery powering them eventually runs out.

What brand of thermometer do doctors use?

Here are the best thermometers: Best thermometer overall: iProven Forehead and Ear Thermometer. Best budget thermometer: Vicks ComfortFlex Digital Thermometer. Best ear thermometer: Braun ThermoScan 7 Digital Ear Thermometer.

How do I know if my digital thermometer is accurate?

For digital thermometers: Test every six months or so (depending on frequency of use) to make sure the thermometer works properly, using either the ice water or boiling water method. Many digital thermometers have reset buttons. If the accuracy is off, adjust the thermometer to the proper temperature using this button.

Which is better oral or forehead thermometer?

An armpit (axillary) temperature is usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than an oral temperature. A forehead (temporal) scanner is usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than an oral temperature.

Is a mercury thermometer the most accurate?

As is true with most instruments, greater accuracy will likely cost more when measuring temperature. Liquid-in-glass thermometers without mercury are not as accurate, so they should be used when less precision and certainty is acceptable. … Digital thermometers are typically $100 and up.

Why are digital thermometers more accurate?

As the temperature drop, some of the alcohol can also remain behind, which can also cause an inaccurate reading. Instead, digital thermometers contain metal parts that react based on voltage to provide faster and more accurate results than alcohol or water.

What are the advantages of using a digital thermometer?

Advantages of Digital Thermometers  Digital thermometers provide temperature readings in decimal points, for an accurate and specific reading.  They are also easier to read than their mercury counterparts.  It is faster than the normal thermometer in calculating readings.

Which non contact thermometer is best?

Best Overall: iHealth No-Touch Forehead Thermometer. Amazon. … Best for Babies: Vava Smart Baby Thermometer. Amazon. … Best for Kids: iProven Ear and Forehead Thermometer for Kids. … Best Forehead: Olangda Forehead Thermometer for Adults. … Best Digital: Bumapo Waterproof Digital Thermometer. … Best for Ovulation: Femometer Vinca.

Do digital thermometers use mercury?

Newer technologies include non-mercury liquids-in-glass as well as 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. … The most concerning are mercury-containing thermometers.

Which sensor is used in digital thermometer?

Digital thermometers are temperature-sensing instruments that are easily portable, have permanent probes, and a convenient digital display. The way a digital thermometer works depends upon its type of sensor. Sensor types include resistance temperature detector (RTD), thermocouple and thermistor.