100A AC LCD Panel Digital Power Watt Meter Monitor KWh Voltmeter Ammeter E26

Specification: 
Voltage Measuring Range: AC 80 ~ 260V
Current Measuring Range: AC 0 ~ 20A
Active Power Measuring Range: 0 ~ 4.5kW
Energy Measuring Range: 0 ~ 9999kWh
Operating Temperature: -10 ºC ~ 65 ºC
Operating Humidity: 35~85% RH
Dimensions: 9cm * 5cm * 2.45cm/3.54" * 1.97" * 0.96"
The meter can only measure the active power (real power). It doesn't show Apparent power which includes reactive power and active power.
Dual measurement of AC voltage, AC current (It can't be used for measuring the AC power converted from a DC power with an inverter).