ORP meter MW500 Back Catalog number: MW500 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request MW101-SOIL MW101-E Portable pH meter MW101-SOIL Price on request CTS-21212 TIS Capillary Electrode, API 2000, QTRAP Price on request