HI 7635 Flow-thru Conductivity Probe with 4 m (13.1’) cable and color coded wires Flow-thru Conductivity Probes The wide range of HANNA conductivity probes includes flow-thru and dip models for industrial applications. These conductivity probes combine the proven four-ring potentiometric method of measuring conductivity with platinum sensors. The universally acclaimed four-ring method provides an exceptionally stable measurement over a wider range. These probes do ... Read More »