withheldforprivacy said:
Gero didn't have a scouter. He just counted on prior knowledge of the Z Fighters.
He had no sort of benchmark from which he could estimate SSJ, yet still mentioned it being within a range #19 could handle. There's also Vegeta saying Saiyans can't be measured in mere numbers, making it pretty blatant that #19 and #20 indeed had power radars.
As for the OP, could be that infinite energy types simply have all around better capabilities than the energy absorption type. That would contradict #16's radar being far better than #17's, though it could be that their organic matter hindered this function in #17.