Single-phase electricity meter 100A with ModBus. The PRO2 energy meters are available in a standard, 2-tariff with ModBus and pulse output. The PRO2 energy meter displays a number of instantaneous variables such as voltage, current, active power, reactive power, apparent power, frequency and power factor on the LCD and some via ModBus. The PRO2 energy meters comply with the Measuring Instruments Directive 2014/32/EU. The MID approval ensures the accuracy and quality of the meter and enables its use in billing purposes.