0 {- t! O" s$ ~" N& Z/ zI think the Sensor scale they have created sounds reasonable and credible. The comparisons were performed not based on single test but several times, it is fair.0 Q; h" F9 @( B0 z# r) y4 G" j+ q0 |7 S
Besides, this website has been used by many professional instituts which makes it more reliable.