As long as baby will keep the pacifier in his or her mouth for 90 seconds, you can get a fairly accurate temperature from it.
Baby pacifier thermometers
is housed in a classic-looking silicone orthodontic pacifier with a plastic shield. The front of the shield is slightly larger than some since it houses the digital thermometer. The only other difference is that you can see the small sensor inside the part of the pacifier that goes in baby's mouth. The baby pacifier thermometer is easy to turn on. You just have to push a little button on the front and wait for the usual "L" to show up to indicate that it's ready. Baby keeps the pacifier in his or her mouth for about 90 seconds, until it beeps, and you can easily read the temperature on the front. It usually came within a tenth of a degree. If you're looking for a fast, convenient, non-invasive way to take baby's temperature, baby pacifier thermometer is a reliable choice.