Note: If your water contains fluoride

Keep minerals in solution: Hard water minerals stay dissolved and flow through your plumbing harmlessly

Features at-a-glance

measures the ability of a solution to oxidize or reduce substances

Monitors and controls TDS levels for high output commercial systems

Milwaukee MI404 Free & Total Chlorine PRO Photometer alkaline glass bottle Note: If your water containsAB GRADE, EASY TO USE, HIGH PERFORMANCE. Milwaukee MI404 PRO Photometer is for users demanding fast, reliable, repeatable results with ease of use. DESCRIPTION The Milwaukee MI404 PRO Photometer features manual zero point calibration and fast operation in a rugged design. The Milwaukee PRO Photometer is ideal for users in pools, brewing, winemaking, and hydroponic applications. This meter is also ideal for educators that want their students to learn