pH55 (pH/Temp waterproof tester Mi5559 Back Catalog number: MI5559 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended C65 Waterproof conductivity tester, 0 to 1999 μS/cm Price on request MW804 pH/EC/TDS/Temp tester MW804 Price on request MI105 Portable meter Mi105 Price on request