The HydroLogic TDS PRO In/Out PPM Monitor precisely measures total dissolved solids (TDS) levels entering and exiting your reverse osmosis (RO) system, providing instant insights into water purity. Designed specifically for the Evolution-RO with 1/2" inlet and 3/8" outlet connections, this professional-grade monitor helps ensure your filtration system operates at peak efficiency. Its larger, water-resistant display and shielded cables offer durability and reliability, clearly indicating when maintenance or membrane replacement is required.
