Dexcom One Plus System It is a continuous glucose monitoring device. Usage Period It works for exactly 10 days + 12 hours. Automatic Readings and Alerts It sends sugar readings and alerts every 5 minutes automatically without the need for manual measurement or scanning. Strong Transmission Range It picks up the signal from the mobile phone up to a distance of 10 meters. Waterproof Suitable for daily use, showering, and swimming without worry. Extra Patch It comes with an extra patch for better adhesion and longer comfort. Works automatically after pairing with the app New Date