The SE600 is a Multi-Parameter Probe For Measuring Ph, Conductivity and TDS in water testing applications and is a replacement probe for the Milwaukee MW801 and MW802 meters. It is a multi-parameter probe for measuring Ph, Conductivity, And Total Dissolved Solids (Tds) In Water Testing Applications. It Contains A Single-Junction Silver/Silver Chloride (Ag/Agcl) that Is Sealed And Filled With An Electrolyte Solution Gel For Minimal Maintenance. It Has A Polypropylene Body For Solvent Resistance. It is 16mm Diameter and 98mm long and has a 1M Cable with a 7-Pin deutsches institut für normung (Din)-compliant connector.