Water Readings: Check dissolved solids levels and water temperature on a clear LCD screen, giving you a fast way to review water conditions at home, near an aquarium, or during pool checks Simple Three Button Control: Hold, temperature, and power buttons keep handling easy when you need to keep a reading on screen, change functions, and repeat checks without a complicated setup Built For Routine Checks: Automatic temperature compensation supports dissolved solids reading, while the clear display helps you compare water conditions during home, aquarium, pool, and filter care Portable Pen Design: The ABS body and probe cap fit neatly in a drawer or bag, so the meter stays easy to carry for drinking water checks, daily water review, and filter checks around the home Useful For Multiple Sources: Use this digital meter for drinking water review, tap water checking, aquarium care, pool review, and filter follow ups whenever you want results, Manufacturer: Msioytog