Quick Answer: Are Cheap Digital Thermometers Accurate?

Do digital thermometers read low?

07 degrees Celsius of the reading on the reference thermometer (a mercury thermometer brand most often used by the clinic), but two of the digital units registered lower average temperatures.

One produced a reading lower by .

2 degrees and the other by ..

Do you add a degree when taking temp under tongue?

Should I add a degree to oral (under the tongue) and axillary (under the arm) readings? Yes, for the most accuracy. Rectal temperatures are considered most accurate indication of the body’s temperature. Oral and axillary temperature readings are about ½° to 1°F (.

What is the most accurate thermometer for home use?

The best thermometers you can buyiProven DMT-489. Best thermometer overall. … Innovo Forehead and Ear. Another top dual-mode thermometer. … Vicks ComfortFlex. Best thermometer for infants. … Chooseen Digital Forehead and Ear Thermometer. … Kinsa Smart Ear Thermometer. … Kinsa QuickCare. … Elepho eTherm. … Braun ThermoScan 7.

What kind of thermometer is most accurate for adults?

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 digital thermometers?

Accurate temperature measurements start with using the right brand of thermometer. … For digital stick thermometers, accuracy is required to ± 0.2°F or 0.1°C (when tested on a water bath), within the range of 98°F and 102.0°F.

What no touch thermometer do hospitals use?

The Hospital Grade No Contact Thermometer – Hammacher Schlemmer. This is the infrared thermometer used by hospitals for its convenient and hygienic operation that provides an accurate temperature reading in only one second without touching the patient.

What kind of thermometer is best for adults?

If you’re looking for a traditional oral/rectal stick thermometer, our pick is the iProven DTR-1221A. If you want an in-ear thermometer, we recommend the Equate Infrared In-Ear Digital Thermometer. And if you’d prefer a contactless forehead thermometer, ThermoWorks’s Wand No Touch Forehead Thermometer is our top pick.

What is normal temp under tongue?

Fever is usually a sign of illness, infection, or other conditions. The normal oral temperature for adults is about 98.6° F (37° C). The normal oral temperature for a child is between 97.6° and 99.3° F (36.4° and 37.4° C). The normal oral temperature for older persons is 98.2° F (36.8° C).

What temperature is a fever on forehead?

The following thermometer readings generally indicate a fever: Rectal, ear or temporal artery temperature of 100.4 (38 C) or higher. Oral temperature of 100 F (37.8 C) or higher. Armpit temperature of 99 F (37.2 C) or higher.

Do you add a degree when taking temp on forehead?

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

How do I know if my oral thermometer is accurate?

Ensure there is no air left in the mouth while keeping the thermometer in place. Air in the mouth will cause temperature differences in the mouth tissue, making readings inaccurate. Wait at least 20 seconds even if the thermometer indicates it is already ready. You may also measure twice.