I have only one regret: not having bought it before thermometer. This model is highly reliable (I checked almost systematically rectal during initial use). It is very easy to use: a few seconds to take the temperature without undressing the child. This is useful to monitor a fever for a disease for example. The tips are a bit expensive. Here we use the same tips several times when it is not dirty but we only have one child ... I recommend buying this thermometer to all those who have children.