Okaylight power Meter provides information of power consumption of connected devices. Values can be display as Voltage, Power Input, Frequency,Power Factor, Overload values. You can also enter your electricity tariff and view actual costs. Additionally,the plug energy meter measuring device indicated the total consumption of the past 7 days/7 months as well as the operation time. Display the equivalent CO2 emission in kg also provides you with additional ecological information. More functions as below.