... 1.0Ah and a long life time over 10 years, the battery can continuously work more than 3 years. ♦ Display and surveillance 1 ... peak load, day hour, low load energy, etc. LCD display recycled. After energy meter connect electricity, date, time, current ... 4m,-Communication angle: ≥±15o3. RS485 communication: baud rate 1200bps/s, semiduplex , RS485 communication circuit is separated with inner meter ...