Measure the time you take your shower (or to water the lawn) and calculate the amount of water used and how much you have to pay for it.
You can save a history of calculations and email them to yourself for backup and further processing.
Measure the time you take your shower (or to water the lawn) and calculate the amount of water used and how much you have to pay for it.
You can save a history of calculations and email them to yourself for backup and further processing.