TIS Capillary Electrode, API 2000, QTRAP Back Catalog number: CTS-21212 Availability: In the manufacturer's stock Price on request - + Recommended MW802 Smart pH/EC/TDS combined meter MW802 Price on request MI605 Oxygen portable meter Mi605 Price on request MW101 Portable pH meter, 0.00 to 14.00pH, 2point cal. Price on request