COM100 EC/TDS/TEMP Water Quality Meter — High-Precision Conductivity, TDS & Temperature Tester Pen for Aquarium and Pool, Plug-and-Play

Precision EC, TDS and temperature readings let you evaluate water quality quickly and accurately for aquariums and pools, helping maintain safe, healthy conditions for aquatic life. The meter features a clear digital display for straightforward reading and simple operation. Its compact, portable design makes it convenient for spot checks and regular monitoring on the go. Built with durable construction to deliver reliable, long-lasting performance across a range of water environments.