This is a decent basal body thermometer, but not anything special. I like that it measures to the hundredth of a degree, versus the typical thermometer that reads to the tenth. Plus, with the little alarm when it's done taking your temp, you don't have to guess when it's finished. And, if you don't write down the measurement right away, there is a memory function that will keep track of the last measurement taken, and you can access it for noting in your records later. What I didn't like is simpSee full review