Your search for "Endress+Hauser hygienic conductivity sensors" revealed the following:

Endress+Hauser Proline Prowirl R 200 low-flow vortex flowmeter for steam and gas measurement
Endress+Hauser FQG60 radiometric source container
Endress+Hauser Cerabar PMP63B high-accuracy pressure transmitter for pressure and hydrostatic level measurement
Endress+Hauser FQG74 radiometric source container for level and density measurement applications
Endress+Hauser LNGmass D8LB Coriolis flowmeter for LNG cryogenic refueling applications