Before purchasing a water meter, you need to know:
A water meter, like any other meter, does not save money, but only stimulates to save. If you wanted to reduce the payment for water consumed in a house or apartment, installing a water meter - you are likely to be disappointed, as the amount on the bill will not change significantly.
No water supply organization has the right to obligate you to install another meter from the one you have chosen and which is certified in your country.
The price of a water meter may include a lot of features and functions that are absolutely unnecessary for you. Mechanical water meters have the lowest price and their installation is sufficient in 95% of cases.
The price of designing and installing a water meter usually indicates the quality of the services provided, and it is better not to save on these services.
Once every 4 years, you will have to call a metrologist, unseal the measuring device and send it for verification. The procedure for verification of water meters is paid.