APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended MI60P Combination probe for pH/EC/TDS/Temp for MW803/MW8 Price on request MW101-SOIL MW101-E Portable pH meter MW101-SOIL Price on request MC310 Conductivity monitor MC310 Price on request