Digital PH Meter PH Meter 0.01 High Accuracy Resolution Pocket Size Water Quality Tester with ATC 0-14 PH MeasurementOOTDTY Features : Small and Portable Pocket. It is small, lightweight, easy to carry, and can be conveniently placed in your pocket when going out. Ideal for home or laboratory use, suitable for testing the ph balance of drinking water, swimming pool, aquarium, ro-system, spa or hydroponics; Suitable for a wide range of applications. The ph meter has an automatic temperature compensation function that adjusts to the water temperature and water quality to get ph readings almost instantly. Make sure your pool, ge-neral ph hydroponics or even drinking water has the perfect pH balance and is safe to use with the pH accuracy of a tester. The tester has a sensitive electrode sensor to read accurate ph levels. You don't need to care about the temperature of the test liquid anymore because the ph meter has built-in (ATC) automatic temperature compensation, so it can accurately determine the pH value. Specification: Material: ABS Measuring Volume: 14.8x 3cm/ 5.8x1.2 in Measuring Range: 0-14 pHBaterition: 1.5V button battery, 3 X LR44, You can mention them: 0.1pHBager: pH 0.1mmPackage Included: 1X Digital pH Meter1X Screwdriver1X Manual2X Powder BufferNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.