Valley Electronics has been developing innovative fertility trackers for women around the world since 1986. First came the Baby-Comp, then the Lady-Comp, then the next generation Lady-Comp, then the Daysy, and now the Daysy 2.0. With Daysy you can reliably determine your cycle. . Daysy is a medical device and lifestyle fertility tracker. Daysy enables all women with a desire for a health-conscious lifestyle to observe their individual monthly cycle and determine their fertile and infertile phases in natural harmony with their body... . Daysy is an effective and scientifically supported method, with which you can easily, reliably and accurately separate your fertile phases from the infertile ones on the basis of sensitive basal temperature measurement. . With Daysy you can measure your basal temperature every morning - just before getting up under your tongue in 30 - 60 seconds. Daysy immediately analyzes your cycle and shows you when your fertile days are and when they are not thanks to a simple color system. . Through an intelligent algorithm based on scientific knowledge and many years of experience, Daysy offers the highest quality and reliability. The algorithm captures and learns your data by measuring your basal body temperature and using statistical methods that allow you to accurately predict your upcoming cycle. . . Daysy shows you your fertility status as either a red or green light. So you know exactly when you are fertile and when you are not. The technically supported temperature method used by Daysy is one of the most accurate methods in the world... . Daysy is compatible with the smartphone via the DaysyView app and thus opens up new possibilities to digitally expand your knowledge of your cycle and body and also to share it with your partner, doctor or the team of experts. . DaysyView shows you your individual cycle calendar and your temperature curve as well as numerous statistics about your cycle. You will also receive a forecast of your fertility status in the coming weeks so that you can plan optimally. Especially handy: You can connect your Daysy to your smartphone via Bluetooth connection.