... current, voltage, active power, frequency, kWh. Pmac901 Single Phase Energy Meter with following Features:1. LCD display kWh data2. Read ... , voltage, active power, frequency, kWh.3. 35mm DIN rail instaling, standard DIN ED50024. Active energy accuracy up to class 15. 6 ... energy8. One RS485 port, support MODBUS protocol Single Phase Din Rail Kwh Meter ( Energy Meter, Static Meter, Electric Meter)