which correlates directly to the concentration of dissolved salts and minerals

°KMW (Austrian standard)

put the filter back in place

with digital fine tuning

What is the difference between this filter and the standard Gravity System filter

Milwaukee MW401 PRO TDS Meter | Low Range 0-1990 ppm with ATC quick check monitor which correlates directly to theDESCRIPTION MW401 is a Portable Low Range Total Dissolved Solids (TDS) Meter with Automatic Temperature Compensation. This instrument has been designed for aquariums, aquaculture, labs, and water conditioning applications to meet the needs for equipment suited from hobbist to professional. It is also a great meter for food labs, and water treatment applications. TDS testing provides a method to optimize chemical applications and minimize operational