Compact, affordable digital TDS meter for instant water quality checks. It measures Total Dissolved Solids (TDS), which are salts, metals, and minerals in water, and displays the result in ppm at the touch of a button. Key benefits Quick, on the spot readings to judge overall water purity and compare sources or after treatment. Simple one button operation with a clear ppm display for easy interpretation. Portable handheld design with a protective carrying case; rugged enough for professional use. What it measures and how it's used TDS provides a practical indication of water quality for a wide range of needs. Ideal for drinking water, filtration and purification monitoring, hydroponics nutrient checks, aquariums, RO/DI systems, pools and spas, and various commercial or industrial applications. Applications Home use: verify post filtration water quality after a filter or purifier. Greenhouses and hydroponics: monitor nutrient concentrations in irrigation water. Aquatics and pools: maintain appropriate water conditions for fish, plants, and equipment. Design and practicality Handheld, compact, pocket friendly with a durable carrying case. Simple to use in daily workflows, making it a reliable tool for water quality checks in both smallscale and professional environments.