COM100 EC/TDS/TEMP Water Quality Pen — High-Precision Conductivity & Purity Tester for Aquariums and Pools, Portable

The COM100 pen tester provides precise measurements of EC (conductivity), TDS and temperature to help you monitor water quality in aquariums and pools and maintain safe conditions for aquatic life. A clear digital readout and straightforward controls make results easy to view and operate even for first-time users. Its compact, portable design lets you carry out on-the-spot testing and routine checks wherever needed. Constructed for durability, this meter is built to deliver reliable performance across a variety of water environments.