Lady with an electronic thermometer with Zodobal, did you try to read the instructions? There are written normal temperatures for measurement in the mouth, pope and under the mouse, the latter is noticeably lower. It is also written that under the mouse you need to keep another five minutes after the sound signal, that is, approximately as usual, to get the same temperature. During this time, approximately half the degree you are missing. Your average is low. In short, don’t forget Murphy’s law: “If nothing helps, read the instructions.”