■ The design and construction of the energy meter ensure that it will not cause any danger when used under rated conditions;
■ internal circuit board is equipped with a relay for direct power control;
■ bidirectional metering, can accurately measure the positive and negative direction of the power, and measured in one direction;
■ After the first purchase of electricity, pre-purchase of electricity below the set amount of electricity will alarm, power out of power;
■ digital tube display cycle to display the use of electricity and the remaining capacity;
■ With memory function, the data is not lost after power failure, can be restored after power on, the data within the table after the power can be saved for 10 years;
■ identification of illegal card function, insert the illegal card meter that is wrong, display 'Err';
■ Maximum storage capacity: 9999 kWh;
■ use of ordinary contact IC card, the parameters of the energy meter set, stored power, information back write;
■ With three alarm and credit function, display alarm, sound alarm, open the alarm, power credit function are optional.
■ With 485 communication function, can read the table number, the remaining power, the use of electricity, the number of power purchase, the last purchase of electricity and other data, communication protocol to meet the DL / T 645-2007 communication protocol.