I have a site that has a few of the PR55-20A - Predictive Maintenance Sensors. I believe the ones they have are the style with cable glands on the white transmitter housing (not the metal M12 connectors)
The site reports that the cable clamp might be too small for a lead they are intending on measuring. Are the current clamps available for puchase in larger sizes?
The site says if they could get a current clamp with an interior diameter of 1", that should work.