The term hall current probe isn't quite clear, I think. I would use it for DC current sensors with open magnetical path, based on hall effect sensors. Like this instrument https://www.tti-test.com/go/iprober/index.htm
yes , it based on hall effect sensor, it use for measuring current (AC or DC) in PCB that is cannot be measuring by clamped device .
but hall effect sensor used with clamped devices . now i need construction of hall current probe and how hall effect sensor used with current probe.