Using electric meters saves you money. But not only. Today, there are many modifications of electricity meters that allow for completely different tariffs for consumed electricity. Most recently, household electricity meters were a novelty, but now having a meter at least to measure electricity is a matter of honor for any owner who does not want to be considered wasteful in the world.
There are a large number of electric meters now. It is easy to find what you need for yourself. All meters can be conditionally divided into several types, depending on what quantities are measured, what is the design of the meter and the type of connection. Now more about each of them.
The simplest thing is to understand the types of meters according to their type of connection. There are direct connection meters that do not require any additional equipment, but there are meters that can only be connected to the circuit using a measuring transformer. Choosing a meter for your home, you should opt for a direct connection, which does not require additional costs and efforts.
As for the measurement values, the meters are divided into single-phase and three-phase. You should not understand their numbering system, since modern three-phase meters can easily cope with single-phase tasks, and this is a measurement of the transmitted current with a power of 220 V, 50 Hz.
And let's say a few words about the design of electric meters. They are induction and electronic. Recently, people prefer the latter, since they have a number of advantages over mechanical ones. For example, greater measurement accuracy and the ability to remotely take readings. But both are still freely available in stores. Relying on good old mechanics or keeping up with the times and choosing electronics is entirely up to you. One thing is clear - an electric meter installed in your home will save you money for more than a dozen years.