Portable pH Meter Water Quality Tester Pen for Aquariums
Precision-engineered pH tester with high-accuracy sensor (±0.01 resolution) for instant, reliable readings. Durable ABS housing and reinforced probe tip ensure long-term use in harsh aquatic environments. Auto-calibration feature with included buffer solutions (4.0/7.0/10.0) for lab-grade consistency. Compact, waterproof design fits tanks, hydroponics, and pools—ideal for aquarists, gardeners, and labs. Replaceable electrode and low-battery indicator maximize convenience. Ships pre-calibrated—ready for immediate testing straight out of the box. Bulk discounts available for commercial buyers.