Feature: 1. The PH probe is corrosion‑resistant, has a long service life, quick response, and more stable data. 2. Suitable for domestic water, marine aquaculture, swimming pools, рн laboratories, wastewater treatment. 3. Large‑screen digital display, ph/temperature display at the same time, the reading is clear. 4. The compact design and lightweight make it easy for you to use the pH meter wherever you need it. 5. The PH measurement range is 0.00-14.00, and the temperature compensation range is 0-55°C. Specification: Item Type: Water Quality Tester Material: ABS Color: As shown in the picture Display Size: Approx.65x26x65mm/2.56x1.02x2.56in Weight: Approx.313g/11oz Application: Domestic water, sea water, aquaculture, swimming pool, рн laboratory, wastewater treatment Temperature Compensation Range: 0-55°C Measuring Range: PH: 0.00-14.00 Power Supply: 4 x LR44 button batteries (not included), DC6V EU adapter 230-240V How to Use: 1. Insert the probe 2. Put the probe into the liquid to be tested 3. Read the data (completed) . Package List: 1 x Display(Battery Not Included)1 x Probe1 x Adapter1 x Screwdriver1 x Instruction Manual Note: 1. 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.