- AUTOMATIC CALIBRATION: Ensure consistent accuracy with our auto calibration feature. After extended use or inactivity, simply utilize the provided buffer powder and press the "CAL" button for effortless recalibration. - ACCURATE AND RELIABLE: Our pH meter is equipped with a high-quality sensitive probe that delivers precise and swift results. Submerge the probe in water, and the LCD will display accurate readings within seconds. - PORTABLE DESIGN: The compact pen-style design makes it easy to carry in your pocket or bag. Whether you're at a pool, traveling, or camping, you can conveniently test water quality on the go. - LCD BACKLIT DISPLAY: The bright backlit LCD screen ensures easy readability in both bright sunlight and low-light conditions, providing clear and accurate measurements when you need them most. Ideal for a variety of applications, this pH meter is perfect for pool maintenance, aquariums, and gardening. With its user-friendly features and reliable performance, you can confidently monitor water quality wherever life takes you.