High-precision Measurement: Ensure accurate and reliable measurement results with our pH Meter, with a wide measurement range of 00-00 pH and resolution of 01 pH Suitable For Home And Laboratory Water Testing: Our Water Tester is portable and convenient, for various application scenarios in both home and laboratory settings Automatic Three-point : Use automatic three-point for quick and easy measurements with our pH Pen, ensuring high accuracy with an accuracy up to ±01 pH Wide Measurement Range: Our Water Tester Professional has a wide measurement range of 00-00 pH, suitable for testing water in aquariums, ensuring precise results every time Fast Automatic Function: With a fast automatic function, our pH Meter is efficient and user-friendly, making it the tool for testing water in aquariums and laboratories