pH/Temp waterproof tester, -2.0 to 16.0 pH Back Catalog number: PH55 Manufacturer: MILWAUKEE ELECTRONICS Availability: 3 weeks Price on request - + Recommended MC122 pH controller MC122 Price on request MI106 Combined portable meter pH/ORP/Temp Mi106 Price on request MI151 pH/ORP/Temp combined bench meter Mi151 Price on request