APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended HI981032 pH Tester for Cheese Price on request HI 98103 pH tester CHECKER Price on request CD601 Conductivity tester with atc, 0 - 1990 µs/cm Price on request