The TempCue is a revolutionary new basal body temperature (BBT) thermometer that connects directly to the OvaGraph Fertility Charting App through your smartphone. With TempCue, you can easily take your basal temperature upon waking, and the data will be saved, charted, and interpreted automatically according to the Fertility Awareness Method by OvaGraph – the official app of Toni Weschler’s bestselling book, Taking Charge of Your Fertility.