Feature 1Digital pH measuring instrument, measuring range is 0.0014.00PH, high accuracy, small error. 2LCD display, with backlight function, easy to read values and accurate measurement. 3Widely used in water sources, aquariums, hydroponics, spas, swimming pools and other water systems. 4The electrode probe can be replaced, the response is sensitive and the measurement is convenient. 5Water quality tester kit, perfectly suitable for aquaculture, laboratories, sewage treatment, etc.Item Type: PH TesterMaterial: PlasticWeight: Approx. 361g / 12.7ozMeasuring Range: 0.00-14.00PHResolution: 0.01PHAccuracy: 0.1PHBattery Information: 4 x 1.5V (AG-13) (Battery Not Included)Temperature Compensation: 0-50How to Use: Connect the probe to the host, turn on the switch, and put the probe into the liquid to be tested. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x PH Tester (Battery Not Included)1 x Electrode Head1 x Manual1 x Screwdriver1 x Protective Box