0.01 Clinical Accuracy - Ovulation Tracking - Extra Soft Beep - Measure Real Body Temperature Basal Thermometer: Get Grip On Family Planning The basal thermometer is your must-have tool during your Natural Family Planning adventure. It can be an exciting, yet overwhelming time. Whether you are trying to conceive, preventing pregnancy, or just wanting to learn more about your natural cycle - finding a high-quality and accurate basal thermometer that delivers consistent, trustworthy measurements of your basal body temperature can be a real challenge. That’s why we’ve created the BBT-113 Ai. And don’t just take our word for it. The BBT-113 Ai, FDA approved for accuracy and safety, has been chosen as the #1 basal thermometer by Mom Loves Best! Ovulation detection and fertility tracking with utmost precision Our basal thermometer is equipped with precision-engineered technology that will allow you to measure your basal body temperature with 1/100th accuracy every morning. With so much riding on the accuracy and reliability of your ovulation tracking, only the highest accuracy will do!