An "artery thermometer" is a type of thermometer that measures body temperature by detecting the heat in the arteries. It is usually used by doctors or nurses to quickly and accurately measure a person's temperature. Full definition
The alternative is a temporal artery thermometer, which is a lot more expensive and not quite as accurate, but not at all invasive. (momtricks.com)
The second most accurate option is a temporal artery thermometer. (babycenter.com)
There are oral thermometers, the armpit ones, the rectal ones, the pacifier ones, the ear canal ones and last but not least, forehead thermometers; also known as temple artery thermometers. (welcomeparenthood.com)