Elecall D02A Multi-function Smart Meter Digital Energy Power Meter Wattage Voltage Analyzer 110-230V (Standard)

Work without batteries. Measures various parameters: power (W), energy (kWh), volts, amps, hertz, power factor and maximum power (W), time, days - kWh is vital as this is what your electricity bills are based on!
Large & Clear LCD display, easy to read
Electricity price setting by pressing MENU, UP and DOWN button according to the instructions
Two ways for calculating operation time: time in single operation period and accumulated time in all opeartion periods.
Two ways for calaulating power consumption and power cost, ratio of operation condition and standby power can be pre-set.