Professional Yellow pH Tester Pen – Accurate & Food-Grade Water Quality Testing
Precision-engineered pH meter with a high-sensitivity glass electrode for instant, accurate readings (0.01 resolution). Durable ABS body with waterproof design, ideal for testing drinking water, aquariums, hydroponics, and food safety. Advanced auto-calibration (3-point) ensures reliability. Compact, lightweight pen-style for portability. Includes replaceable electrode and low-battery indicator. Exclusive bulk pricing for wholesalers. Globally compliant (CE/FCC certified). Ships fast with wholesale discounts on large orders.