pH55 (pH/Temp waterproof tester Mi5560 Back Catalog number: MI5560 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MC310 Conductivity monitor MC310 Price on request PH58 pH/ORP/Temp waterproof tester, -2.00 to 16.00 pH Price on request HI 98308 Water Purity Tester, 0.0 to 99.9mS/cm Price on request