sonde de conductivité 4 électrodes HACH Modèle CDC401 | eBay
HQ430D Benchtop Meter Package with CDC401 Conductivity Cell | Hach Canada - Overview
HQ40d Meter, CDC401 Standard Conductivity Probe with 1 meter cable and LDO101 Standard LDO Probe with 1 meter cable | Hach New Zealand - Overview - Obsolete