What does it mean when the blinking light at the bottom goes from blue to red?
At that moment the unit is showing you it is not receiving enough signal to measure and display your coherence level. A simple remedy is to take your finger of the sensor, rub your fingerpad to increase the circulation underneath your skin, and then lightly cover your finger sensor again. Or, if you are using the ear sensor, please take your sensor of the earlobe, rub your earlobe to increase the circulation there and then replace the sensor on the fleshy part of the earlobe. You should see the light at the bottom blink both blue and red while it is recalibrating to you, and after a few seconds it should continue to blink blue. This lets you know it now has a good signal and is receiving enough information.
