DDS2-electronic single-phase power meter used advanced
ultra-low-power solid-state integrated circuits technology and SMT
and hot air reflow Process design and manufacture, applied metering
frequency of 50 Hz AC Single-phase watt-hour. All of its properties
are in line with all the technical requirements in the IEC1036 and
GB/T17215-2002 standard 1.0 -- Single Phase. The precision
basically can not be affected by frequency, temperature, voltage,
high harmonics, and the location of installation is arbitrary.
After a piece of product sale out from the factory, it did not need
any adjustment, extended test cycle, thus significantly reducing
the electricity sector testing and meter calibration, reliability
than other similar products have improved markedl