Milwaukee MW500 [MW500] PRO ORP Meter

The Milwaukee MW500 PRO ORP meter is one of Milwaukee's most popular meters with its reliable, fast and simple operation as well as its accuracy.

The Milwaukee PRO ORP Meter is preferred by people looking to dial in their testing program when they have an ongoing need to maintain levels. Common uses are aquariums, swimming pools and spas, and other water quality monitoring uses.

The PRO ORP meter can also be used to measure sulfur dioxide in wine using the manual Ripper titration method.