pH55 (pH/Temp waterproof tester Mi5560 Back Catalog number: MI5560 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended 4090010103 DDO10 Portable DO Meter (Polarographic Type/Color 670,65 € 4090010205 DDO100T Benchtop DO Meter (Polarographic type/Tou 765,77 € MW500 ORP meter MW500 Price on request