SincereetaliFeatures: High Quality Material: Digital pH meter, push-button operated, features a durable and strong plastic shell, protective cap, sensitive probe that can be easily removed, replaced. Fast and Accurate Measurements: It allows pH/EC/Temperature measurement, convenient calibration, automatic temperature compensation for accurate measurement. Backlit Display: LCD screen clearly displays readings; backlight ensures easy reading of data even in the dark; Hold function locks the value on the screen, convenient to record. Mini Size: Small and lightweight pH meter, pen-type design, with a lanyard hole, can be easily put into pocket or bag, carried anywhere, used at any time. Wide Range of Applications: This meter is a good helper for testing the pH balance of water, applicable in drinking water, swimming pool, aquarium, spa, hydroponics, etc. Specifications: Material: ABS Main Color: White pH Range: 0.00~14.00 pH (Resolution 0.01 pH, Accuracy 0.05 pH) EC Range: 1~19999s/cm (Resolution 1s/cm, Accuracy 0.2%) Temperature Range: 0~60.0/32.0~140.0 (Accuracy 0.5) Calibration: pH - 6.86 points, Accuracy 0.1 pH; 6.86/4.00 (6.86/9.18) points, Accuracy 0.05 pH; 6.86/4.00/9.18 counts, accuracy 0.02pH EC--calibrated by factory (1413s/cm) Temperature Compensation: Automatic temperature compensation (0~60?) Power Supply: 3 * 1.5V button battery (NOT included) 5 minutes auto power off: Yes Low power protection system: Yes Battery indicator: Yes Backlight: Yes Item size: 183 * 37 * 37mm / 7.20 * 1.45 * 1.45in Item weight: 90?g / 3.17?oz Package size: 23.5 * 8.5 * 5cm / 9.25 * 3.34 * 1.96in Package weight: 165?g / 5.82oz Note: Digital pH meter only, other pictures are not included. Due to manual measurement, there may be deviation. Due to lights or others, it may slightly different from the pictures.