AZ-8684 pH pen is a handheld, waterproof, and dustproof pocket meter that measures pH and floats, if dropped in liquid. A portable pocket meter is commonly used to measure the pH of substance in hydroponics, education, water treatment, and swimming pools. This meter has push-button calibration capabilities up to three points for a wide range of results. It features a transparent, protective cap to reduce contamination and protect the sensor. The cap keeps the sensor moist when stored upright, and can be used as a container for sensor-conditioning, or on-site calibration. The meter's waterproof and dustproof housing has IP67-rating for protection against solid objects or liquids. The tester has a long-lasting sensor with Polyvinylidene Fluoride (PVDF) reference junction with polymer gel for long lifespan. The meter has a large, upright, single-line LCD screen for ease of viewing, a hold function which freezes readings for recording, and an auto shut-off to extend the life of the batteries. It has a click-lock battery cover for battery access to replace batteries without tools. Specifications: *.Measuring range:2.0-12.0 pH *.Resolution:0.1 pH *. Accuracy:+/-0.3pH *. Display:LCD Backlight *.LCD size:30(H)*8(W)mm *.Sensor Life Time>6 months(with good maintenance) Package Includes: 1. pH meter X 1 2. LR44 button battery X 4 3. User's manual X 1 4. Color box X 1
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