Model DDS26D Single-phase Electronic Radio-communicated Energy Meter has the meter-reading function by radio communication even when the power is off. It also has the warning function and sends the signal to the operator if the meter is in abnormal situation and tamper status. It is a special measuring instrument that is available for the modernization of energy management and can be widely used in various places of energy measuring and management. Function: 1.This Meter can be read by radio communication. 2.This meter integrates multi-functions to realize active (Bi-direction) energy measuring and displaying. 3.This meter has the reading function at the power-off. After the power supply is disconnected, the meter data still can be read by Hand Held Unit(HHU) with radio communication device (Radio Kit). 4.It has tamper and fraud protection functions against phase lines wrong-connecting, i.e., Line in & Line out reversal, bypassing, short circuit in current circuit, external magnetic field influence and DC influence, etc., as well as recording, warning and displaying tamper occurrence. 5.The energy meter's active energy consumption data and the operation states can be transmitted through Hand Held Unit (HHU). Electrical Features Accuracy Class Class 1.0 Rated Voltage 220V Rated Frequency 50Hz Start Current 0.002Ib Voltage Circuit Power Consumption <=1.0W，6VA Current Circuit Power Consumption <=0.5VA Display LCD, 6 integers, no decimal Nominal Current 10(60)A Meter's Constant 1600imp/kWh Running With No Load Protecting Against Running With No Load Circuit Operation Voltage Scope 220/240V Physical Features Weight 0.7Kg Outside Size 192mm*112mm*60.5mm Ambient Temperature -25'C~65'C Max Relative Humidity 95%