APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended MW802 Smart pH/EC/TDS combined meter MW802 Price on request 4090010102 DEC10 Portable Cond Meter(Color screen) 1.DEC10Me 563,98 € MW402 TDS meter MW402 Price on request