... adopts long life type. The meter is widely used in office buildings, shopping malls, residences, airports and metro, etc. ... sharp, peak load, day hour, low load energy, etc. LCD display recycled. After energy meter connect electricity, date, time, ... Battery Voltage3.0 or 3.6VDCData Preservation Time≥10yearsPower Consumption(LCD)Voltage circuit consumption: ≤1.0W 6VACurrent circuit consumption: ...