Many Internet users believe their "unlimited" account lets them surf the Internet, send large email attachments and download as many movies and songs as they choose. However it is well documented by the media that many Internet Service Providers, both in the U.S. and elsewhere, do in fact set definite usage limits, even though they may advertise to the contrary. Some will take drastic measures like termination of an account without any advance warning, if these limits are exceeded. DU Meter can create detailed reports of the total network traffic volume on your computer and can alert you if certain limits are surpassed. If you have teenage children or if you own or manage a business, DU Meter can be especially useful for you to you too.
You can configure DU Meter to report back to you via email when monthly or weekly network traffic exceeds a certain threshold. DU Meter will let you know if someone is breaking your rules (For example using peer-to-peer software to share films and music). Since DU Meter 5, the software can even prevent any further Internet connectivity once the alert condition has been met, without any user intervention.