APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended EC60 EC/TDS/Temp waterproof tester EC60 Price on request CD611 Conductivity tester with ATC, 0 - 20000 µS/cm Price on request MI806 Portable meter pH/EC/TDS/Temp Mi806 Price on request