pH/ORP/Temp waterproof tester, -2.00 to 16.00 pH Back Catalog number: PH58 Manufacturer: MILWAUKEE ELECTRONICS Availability: 3 weeks Price on request - + Recommended MI5559 pH55 (pH/Temp waterproof tester Mi5559 Price on request CD600 TDS tester with ATC, range: 0 - 1990 ppm Price on request MC310 Conductivity monitor MC310 Price on request