Install the FLM-3 inline with your RO/DI system using the included 1/4" quick-connect fittings

Portable Design: Handheld size for easy movement around grow rooms and greenhouses

and hydroponic nutrient solutions

Method: Adaptation of Standard Methods for the examination of wastewater 20 th edition Ascorbic Acid Method

Milwaukee C65 Waterproof Conductivity Pen - EC/TDS Meter with ATC & Replaceable Electrode hydration system Install the FLM-3 inline withProfessional Waterproof Conductivity Pen for EC & TDS Testing The Milwaukee C65 is a rugged, waterproof conductivity pen designed for accurate EC (electrical conductivity) and TDS (total dissolved solids) measurement in aquariums, hydroponics, pools, and water quality applications. With automatic temperature compensation (ATC) and a replaceable electrode, this portable tester delivers reliable readings in any environment. Key Features: Waterproof