The traditional old-fashioned water meter obtains water consumption data by checking the dial pointer on the meter. The water management department must go to the site to check each water meter regularly every month. This not only takes a lot of time to record data, but it is also easy to record errors. The result of this is that the management cost is very high and the efficiency is very low. An automatic reading system has been developed that allows the reading of the meter to be done electronically instead of manually. This is called the Automatic Meter Reading (AMR) technology.