This clinical thermometer has an accuracy of 1/100th of a degree to measure actual temperature, meaning that each reading may take minutes, but the result is amazingly precise. Determine your pattern of the cycle is the first step for ovulation tracking. Using basal body thermometer every day to chart your body temperature and predict ovulation. Ready to become parents and start a great new adventure in your life? A fertility basal thermometer will be your best companion. A rigid tip might accidentally hurt you while using. With a flexible tip, able to be bent easily, basal thermometer by DIHEA provides a safe and comfortable user experience, especially for oral use. A hardcover is included to keep the thermometer sanitized and safe when not being in use.