TDS Meter Pen is a top-tier instrument for accurately gauging the total dissolved solids (TDS) in water up to 9999 ppm. This digital pen-style tester is crafted for precision, ensuring you can uphold the highest water quality standards for consumption, aquatic life, hydroponics, and beyond.

User-friendly with a single touch of a button, the meter simplifies the process of obtaining stable readings. The HOLD feature is particularly useful for recording measurements without concern for fluctuating numbers. Its slender construction allows for easy transportation and on-the-spot assessments.