pH55 (pH/Temp waterproof tester Mi5559 Back Catalog number: MI5559 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended HI9126 Přenosný pH/ORP metr Hanna Instruments Price on request CTS-21102 APCI Capillary Electrode, API 4000, API 5000, 4500 Price on request CD610 TDS tester with ATC, range: 0 - 10000 ppm Price on request