AllinOne Digital Water Tester for Aquariums, Pools and Labs Multipurpose digital meter with a clear and easytoread display for quick readings Salinity testing (salt level) for fish tanks and pools, including a salinometer function for precision measurements Pool salt tester and aquaculture use: suitable for swimming pools, fish tanks, water laboratories, and related applications Water temperature thermometer builtin to monitor temperature alongside other parameters pH testing with monitoring, plus EC (conductivity) meter functionality for comprehensive water quality checks Compatible with household water test kits and various water environments, providing reliable results across applications precision instrument designed to deliver accurate measurements to support safe and stable water conditions Use scenarios Scenario 1: Regular aquarium maintenance Monitor salinity, pH, EC, and temperature to keep tropical or saltwater tanks stable and healthy for fish and corals. Scenario 2: Swimming pool and aquaculture care Check pool salinity and water temperature before use, and monitor water quality for aquatic farming or breeding setups. Scenario 3: Small labs and educational testing Perform quick, reliable checks of salinity, pH, EC, and temperature for experiments, demonstrations, or quality control in classroom or home lab environments.