pH55 (pH/Temp waterproof tester Mi5559 Back Catalog number: MI5559 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MW302 Conductivity meter MW302 Price on request PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request MW301 Conductivity meter MW301 Price on request