pH/Temp waterproof tester, -2.0 to 16.0 pH Back Catalog number: PH55 Manufacturer: MILWAUKEE ELECTRONICS Availability: 3 weeks Price on request - + Recommended MC125 pH/ORP controller MC125 Price on request MC410 TDS monitor MC410 Price on request EC60 EC/TDS/Temp waterproof tester EC60 Price on request