SPM91 DIN rail energy meter is a kind of new style single phase whole electronic<br>type meter. The meter is completely conformed to the relative requirements of the<br>International Standard IDT IEC 62053-21:2003 (Class 1). It is an integration of<br>up-to-date micro-electronics technique, special large scale integrate circuit,<br>advanced technique of digital sampling technique and SMT techniques etc.<br>SPM91 is used for measuring active energy power consumption in a rated frequency<br>of 50Hz or 60Hz single phase alternating current circuit. It displays total energy<br>consumption via LCD and is characterized with good reliability, compact size, light<br>weight, specious nice appearance and easy installation.
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