Once your glucose clock is set up, it will show your BG on the clock as long as there is a wifi connection to the clock and the clock is plugged into a power source. If you lose your wifi connection for more than 5 minutes but the clock is still plugged in, it will show “no data.” The clock does not care how close or far you are to the clock or the wifi source. I have these clocks at my house and office, and regardless of where I am located, they display my BG as long as there is power to the clock + a wifi signal.
This is a great way to monitor a child or other individual as well.