Mira logo
Mira logo

All articles

Why Does the BBT Sometimes Appear Blue and Sometimes Green?Updated 10 months ago

The backlight of the Basal Body Temperature (BBT) display changes color based on the temperature reading: 

- When the measured value is less than 99.5°F (37.50°C), a green backlight is displayed. 

- When the measured value is between 99.59°F and 101.28°F (37.50-38.49°C), a blue backlight is displayed. 

Was this article helpful?
Yes
No