Precision Digital pH Meter Pen – Essential Water Quality Tool
High-accuracy LCD display with ±0.01 pH resolution for instant, reliable readings. Features automatic temperature compensation (ATC) to eliminate errors from water temperature fluctuations. Durable epoxy body and reinforced glass electrode for extended lifespan. IP67 waterproof rating ensures resistance to splashes and submersion. Single-button calibration with included pH buffer powders (4.01/7.01/9.21) for lab-grade precision. Replaceable electrode design reduces long-term costs. Ideal for aquariums, hydroponics, swimming pools, and drinking water testing. Compact pen-style design with pocket clip for portable use. Large batches available at unbeatable wholesale prices. Strict quality control meets international standards (CE/FCC certified).