Features: Quickly and accurately measure the PH value of water of food, small size and portable. LCD screen with backlight clearly displays the PH value, easy to read. Auto temperature compensation ensures the measurements accurate regardless of temperature variation. Easy to use, just immerse the PH meter electrode in the solution to be measured. Applicable for aquarium, swimming pools, spa, school laboratories, food & beverage, drinking water etc. Operation Steps: 1. Remove protective cap 2. Rinse the electrode with distilled water and dry it with filter paper 3. Turn on the meter 4. Dip into sample solution 5. Stir gently and wait for a few seconds till the displayed value is stable Specification: Condition: 100% Brand New Material: ABS Color: Shown as Picture Measuring Range: pH: 0.00-14.00pH Resolution: pH: ±0.1pH Accuracy: ±0.2PH ±0.1PH（20℃） Working Temperature: 0°C-50°C Battery: 4 * 1.5V(AG-13)(not included) Size: approx. 14.2*2.9*1.5cm/5.59*1.14*0.59in Weight: approx. 122g/4.3oz Package List: 1 * PH Tester(Battery Not Included) Features Portable and Convenient: Easily measure the PH value of water and food on the go with this compact and portable PH tester. Clear LCD Display: The backlit LCD screen provides a clear and easy-to-read display of the PH value, ensuring accurate measurements. Accurate and Reliable: With auto temperature compensation, this PH meter guarantees precise measurements regardless of temperature variations. User-Friendly Design: Simply immerse the PH meter electrode in the solution to be measured, making it quick and easy to use. Versatile Applications: Suitable for a wide range of uses including aquariums, swimming pools, spas, school laboratories, and food and beverage industries.