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 PH56 pH/Temp waterproof tester pH56 Price on request MC410 TDS monitor MC410 Price on request