DDS2-J1 TYPE SINGLE-PHASE ELECTRONIC POWER METER The type DDS2-J1 single-phase meter is designed for measuring energy consumption in households and at commercial customers in single-phase network services. It adopts the integrate circuit ADE7755 professionally used for measuring energy. The accuracy basically can't be affected by temperature, voltage, and high harmonics. After a piece of meter sold out from the factory, it did not need any adjustment thus significantly delay the inspection cycle. The meter's performance conform to IEC1036,IEC62052-11, IEC62053-21 and GB/T17215-2002 Standard. MAIN FEATURE: ?Accurately measuring of positive, negative cumulative energy consumption. ?Adopts impulse counter display total energy. ?Digits of the counter display are six integers and one decimal. ?The width of the indicator light glint and checkout impulse is 80ms ?Average using lifetime can reach more than 10 years ?Anti-tamper function..