5 stars because I could not fault basically. Have I bought this with the Geratherm 4751006511, Analog basal thermometer to see which is better, or what I prefer. The decision much easily for this digital thermometers. The only thing that bothers me is that it beeps 4 times, the beeping is indeed silent, but I would prefer if it would not beeping, as you so why should measure for 3 minutes according to NFP. The memory function is also very convenient, because you if you do not have to enter the temperature measurement equal wakes up, thus avoiding errors during entry into the cycle leaf. The memory function is automatic. The next time you switch on keeping the power button pressed a little longer than normal, and it seems the last measured temperature. The tip is small so is measuring in the mouth under the tongue easily. I recommend it to all who so wish to measure the Basalthemperatur.
