pH55 (pH/Temp waterproof tester Mi5559 Back Catalog number: MI5559 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MI190 Comb logging with GLP DO/Temp bench meter Mi190 Price on request ORP57 ORP/Temp waterproof tester ORP57 Price on request CD610 TDS tester with ATC, range: 0 - 10000 ppm Price on request