Product Features: DDJ666 Single-phase watt-hour meter is the 2nd gener-ation of theft
proof single-phase watt-hour meter which is the national patent
product. Except keeping all the ad-vantages of the 86 series
watt-hour meters, this product adds 6 theft proof functions, which
can prevent main coil grounding, sub-coil grounding, reverse
rotation (dualdirect-ion electrical metering watt-hour meter),
current coil posit-ion changing, current shunting and voltage power
off. The product has automatic punishing function: give customer double
penalty, when the electricity stealing occurs. This measure can
prevent customer from electricity stealing.