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).