APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended 4090010106 DPD10 Portable pH/DO Meter (Polarographic Type/Col 872,86 € CTS-21212 TIS Capillary Electrode, API 2000, QTRAP Price on request 4090010107 DCD10 Portable Cond/DO Meter (Polarographic Type/C 778,00 €