ELI5: Explain Like I'm 5

Water meter

A water meter is a device that measures how much water you use in your home or business. It records how much water you use and sends that information to your water company. The water company then uses that information to bill you for the amount of water you used. The meter works by measuring the volume of water that flows through a pipe. Every time a certain amount of water passes through the pipe, the meter records it and adds it to your total usage.