Tank Level Alerts
Using the alert tab in the monitoring app, you can set email alerts for if your tank reaches below a certain level. You can control the frequency of the alerts as well.
Common Uses for Alerting
If you'd like to receive an alert every hour when your tank drops below 20% to make sure that you don't forget to call your supplier for a fill up, you'd choose "20%" and 1 hour under frequency.
If you'd like a weekly email letting you know what your tank level is, regardless of level, choose a high number like 80%, and 1 week frequency.