This lightweight white EC tester offers accurate electrical conductivity and temperature measurement for daily and professional water quality analysis. Adopted high-sensitivity electrode probe, it delivers stable readings within the measuring range of 0 to 9990μS/cm, with automatic temperature compensation to avoid data errors from variable water temperature. The clear digital LCD screen supports data hold function to lock test values for easy record, and auto power-off design effectively extends battery service life. Made of durable white ABS plastic shell with splash-proof structure and matched protective probe cap, it prevents probe damage during carrying and storage. Pen-sized compact shape is easy to grip and carry, suitable for hydroponics cultivation, aquarium fish tank, drinking water testing, lab solution preparation and light industrial water inspection. Simple one-button operation requires no complicated setup, friendly for beginners and lab workers. Cost-effective daily water testing tool for families, planting growers and small laboratories.