Feature 1The PH probe is corrosionresistant, has a long service life, quick response, and more stable data. 2Suitable for domestic water, marine aquaculture, swimming pools, laboratories, wastewater treatment. 3Largescreen digital display, ph/temperature display at the same time, the reading is clear. 4The compact design and lightweight make it easy for you to use the pH meter wherever you need it. 5The PH measurement range is 0.00-14.00, and the temperature compensation range is 0-55C.Item Type: Water Quality TesterMaterial: ABSColor: As shown in the pictureDisplay Size: Approx.65x26x65mm/2.56x1.02x2.56inWeight: Approx.313g/11ozApplication: Domestic water, sea water, aquaculture, swimming pool, laboratory, wastewater treatmentTemperature Compensation Range: 0-55CMeasuring Range: PH: 0.00-14.00Power Supply: 4 x LR44 button batteries (not included), DC6V EU adapter 230-240VHow to Use:1. Insert the probe2. Put the probe into the liquid to be tested3. Read the data (completed) .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 Display(Battery Not Included)1 x Probe1 x Adapter1 x Screwdriver1 x Instruction ManualNote1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.