Yieryi Professional Pool Salt Tester Purpose and benefits: Keep saltwater pools clean and balanced by monitoring salt levels and overall water quality for pools, aquariums, and spas. Functions and measurements: Four functions to measure salt, TDS, EC, S.G and temperature. Realtime data with Tuya app: The salt tester can be connected to your cell phone via Tuya App, allowing realtime measurement viewing, recording of historical data, and easy sharing and analysis of results. precision and clear display: Titanium electrode with sensitivity provides fast, accurate readings. An LCD display shows results clearly and intuitively. If ambient temperature is too low, immerse the tester in the measured liquid and wait for a while for more accurate readings. Key applications: Saltwater pools: Maintain salt levels within the recommended range to keep the pool clean and balanced. Aquariums: Monitor water conditions to create a healthy environment for fish. Spas and hot tubs: Track salinity and related parameters to ensure comfortable, safe water. Construction and performance: Titanium electrode for reliable measurement, LCD display for easy readability, designed for quick, accurate liquid testing in swimming pools, aquariums, and spas. Practical use guidance: Check salt levels regularly to prevent imbalance and scaling. Use the Tuya App to review trends over time and share data with others if needed. When taking readings in cooler environments, ensure the tester is in the liquid for accuracy.