APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended 4090010107 DCD10 Portable Cond/DO Meter (Polarographic Type/C 777,31 € MW600 Dissolved oxygen meter MW600 Price on request 4090010100 DPH10 Portable pH Meter(Color screen) 1.DPH10Mete 528,96 €