The readings seem to be low but I require a calibrated meter to compare the two. COVID-19 means I can not do that at this time. The meter powers on and gives different readings for different low-power laser pointers but I need to try more powerful ones that I do not have at this time. It does not seem to be giving expected results but too early to tell if this is normal or a calibration issue.
Measuring looks real. 50mw and 100mw laser pointers shown close values. And 6W RGB laser modules shown values 6,6-6,7W. But shipping was very long, first cuz Chinese New Year and then coronavirus epedemic.