Purchase electricity meters and water meters or in the modern world there is no trouble. On almost any construction market supply is such that I can not remember! But it is leaning on it – to buy electricity meters and water meters to "virtually any" local construction market, at random, guided by all the well-known expression, "but what's the difference" – and promptly predosterigayut professionals. The difference, according metrology, there is! In order not to then worry about buying, check that you have purchased equipment must be made to the State. register of measuring instruments, and thereby admitted to the territory of Russia. Information about this necessarily inscribed in the operational documentation of purchased product.
If for example water meters are not listed in the State Register, so they are not legitimate in the Russian Federation with all the ensuing consequences. Install them, of course, You can, but the supplier of the resource will not be brought into line with the testimony of the metering device / electric meters or water meters choosing, ask a question does not apply, what is their Calibration interval? After all of this metrological characteristics depends how long you will have to face such a problem as their verification, in other words, checking for suitability for further prof. used as equipment natural resource accounting. There are other features. Technique, working materials, which are responsible for the reliability and durability of these devices. Properly orient the store without the necessary study and / or analysis of information about what is it that some electricity meters are different from other counterparts, is unlikely. The most sensible solution to determine in advance all preferences, conduct the necessary analysis of the list of preferred you devices on the most significant parameters. Do not be confused by the complexity of marketing research. Today, it is possible.