APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended MI150-E pH/Temp combined bench meter Mi150-E Price on request 4090010006 DEC1 Pocket Cond Tester 1.DEC1Meter (battery pre- 129,93 € MI106 Combined portable meter pH/ORP/Temp Mi106 Price on request