Power monitoring AC Line Splitter?

I want to monitor power consumption of a device via an AC Line splitter - as below …

I have a spare aeotec gen5 power monitor but the clamp is obviously way too small.. can I just replace the clamp with a much larger one ? Are there any considerations ? Anything I’m missing ?

Then wiring up something like this to the aeotec



I'm surprised that the clamps are too small.

I think you'd need to have some way to calibrate the Aeotec power monitor for the new CT, and I don't know if that can be done.