This versatile water testing instrument supports accurate analysis across household drinking water, pools, aquariums, and laboratory use, delivering reliable onsite results. Function: Provides essential water quality readings for multiple environments, helping you confirm safety, balance parameters, and detect issues early. Compatibility: Designed for home users, aquarium hobbyists, and professional water monitors, covering a broad range of needs and expertise levels. Display: Blue backlit display enables easy reading in dim light and at night. Build: ABS plastic body combines durability with precision engineering for regular use in lab, home, or field settings. Practical use cases: Check drinking water quality at home to ensure safety and compliance Monitor and maintain aquarium water to protect fish and plants Maintain pool water balance for clear, healthy swimming