Dexcom G5 mobile User Manual page 288

PRECAUTION
Do: Enter the exact BG value displayed on your BG meter within five minutes of a carefully
performed fingerstick measurement.
Why: Entering the wrong blood glucose values, or waiting more than five minutes before
entry, might affect sensor accuracy.
Consequences: You may miss a severe low or high glucose events.
PRECAUTION
Don't: Never prevent communication between transmitter and display devices.
Do: Keep smart device and receiver within 20 feet of transmitter and away
from obstructions.
Why: If your transmitter display device(s) are more than 20 feet apart or are separated by
an obstruction, they might not communicate.
Types of obstruction differ and not all types have been tested. Obstructions can include
water, walls, metal, etc.
Water (e.g., swimming, surfing, bathing, etc.) can severely limit communication range.
Consequences: Missing severe low or high Alarm or Alerts.
Dexcom G5 Mobile System User Guide
Troubleshooting 286