According to the search results, digital thermometers are the most accurate way to measure body temperature. The most accurate thermometers are first rectal, then oral. Generally, the farther you get outside the body, the less sensitive your reading will be. Fever strips and pacifier thermometers are known to be inaccurate, so choose digital over these options. Remote forehead thermometers use an infrared scanner to measure the temperature of the temporal artery in the forehead. However, rectal thermometers are still considered by many doctors to be the most accurate for babies and children. It is important to read the manufacturers instructions carefully and use the thermometer correctly to get accurate results.