pH/Temp waterproof tester, -2.0 to 16.0 pH Back Catalog number: PH55 Manufacturer: MILWAUKEE ELECTRONICS Availability: 3 weeks Price on request - + Recommended CD97 TDS tester with ATC, range: 1 - 999 ppm Price on request MC120 pH monitor MC120 Price on request C65 Waterproof conductivity tester, 0 to 1999 μS/cm Price on request