Oxida­tion Reduc­tion Poten­tial (ORP or Redox) is a measure­ment of sani­tizer’s effec­tive­ness in water. Sani­tizer such as chlorin, salt or bromine are measured in milli­volt (mV). Most heal experts recog­nize 650mV as the minimum accept­able ORP.
Most health experts also agree that disin­fec­tion is what really matters, from a health perspec­tive; the amount of chlo­rine or bromine in your water is not neces­sarily as impor­tant as its effec­tive­ness.
Pearl Water Manager measures ORP along with several other impor­tant water para­me­ters and analyses all the results. Pearl Water Manager tells you what to do next so that you have the health­iest water possible.