Sure Test - Pro EC/TDS Meter | AmGrowS

The Sure Test® Pro EC/TDS Pen reads EC, TDS and temperature (ºF or ºC) with automatic temperature compensation (ATC) for more reliable conductivity

Hanna pH/EC/TDS/Salinity/DO/Pressure/ Waterproof Meter

837-3 Pentype TDS / Salinity / Temperature Tester Water Quality

Pro 5-in-1 Meter - Aero-Gro

Experience convenience like never before with Hey abby's Portable Bluetooth Meter. Measure pH, EC, TDS, & temp precisely and sync all data instantly to our APP with just a tap!.

Portable pH/EC/TDS/Temp Meter with Bluetooth - Hey Abby

Water Quality Tester Accurate & Reliable TDS Meter EC Meter

YIERYI Digital Temperature TOD COD TDS Meter, Drinking Water

TDS Meter Digital Water Tester

Milwaukee EC/TDS/Temp waterproof tester

The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for hydroponic nutrient testing.