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 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, laboratory, wastewater treatment Temperature Compensation Range: 0-55C 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) 1 x Display(Battery Not Included) 1 x Probe 1 x Adapter 1 x Screwdriver 1 x Instruction Manual