Measure the output inverter

The output of AC inverter is a modified SINEWAVE. If you want to measure the volt at the output of this inverter unit then you must use a special Multimeter is equipped with facilities METER TRUE RMS volt Because if you only use the regular AVO and using a multimeter or other will result will be readable 20-30Volt lower than the measured results

And when a friend of a friend measure the volts on the output of the inverter using a multimeter with facilities METER TRUE RMS volt guaranteed accurate then the result is 220 Volts