Professional-Grade Accuracy for Water Balance: Our digital salt water pool tester delivers laboratory-level precision, ensuring your salinity, pH, and TDS readings are consistently reliable for a safe, crystal-clear swimming pool or healthy aquarium 8-in-1 Multi-Parameter Testing: Simultaneously measures pH, TDS, EC, salinity, ORP, specific gravity, free chlorine, and temperature in a single device Instant Digital Results with No Guesswork: Get clear, numerical readings in seconds on the backlit LCD screen. This digital water tester eliminates the frustration and ambiguity of traditional color-matching test strips for saltwater pools Engineered for Simplicity and Long-Term Value: Featuring automatic calibration and a robust design, this digital pool water tester offers a straightforward, cost-effective solution compared to repeatedly purchasing disposable salt test strips Unmatched Portability for On-the-Spot Testing: This compact and durable salinity tester is designed for effortless use anywhere. Easily monitor your pool, spa, drinking water, or saltwater aquarium with one handheld device Ultra-Fast Response Time with High Precision: Features an upgraded high-precision sensor with industrial-grade detection chip delivering 0.05-second response time and exceptional accuracy of 0.01 pH for consistent, reliable measurements Automatic Temperature Compensation Technology: Built-in ATC function automatically adjusts readings based on water temperature, ensuring enhanced measurement accuracy across varying environmental conditions for all water testing applications