What happens if the power or the internet goes down?

The AccuBrew sensor has a 6 to 8 hour battery backup and the onboard memory can store multiple tests to protect data. In the event of a power failure, the sensor continues to test and store sensor data for 6-8 hours. Once power and Wi-Fi are restored, the sensor automatically uploads the stored data. If the backup battery dies during a power outage the sensor will automatically resume taking measurements when power is restored.