High-Precision Digital PH Pen Tester
Accurate to 0.01 pH for reliable water quality analysis in pools, aquariums, and labs. Durable stainless steel probe with advanced sensor technology ensures long-term stability and quick response. Automatic temperature compensation (ATC) guarantees precise readings in varying water conditions. Compact pen-style design for easy portability and one-handed operation. Waterproof construction with an ergonomic grip for comfortable handling in wet environments. Wide measurement range (0.00–14.00 pH) suitable for hydroponics, brewing, and industrial testing. Includes replaceable electrode and battery for extended use—ideal for professionals and hobbyists.