HIGH ACCURACY - Integrated With a sensitive electrode sensor, the measurement range of our pH tester is 0.00 to 14.00 pH (0.01 pH resolution); accuracy: +0.01pH(@ 20°C /±0.02pH, allowing you to test your liquid quickly and accurately. AUTOMATIC CALIBRATION - Factory calibrated, but recalibration is necessary in case of a long period of inactivity. or after frequent use. pH 4.01/pH 6.86/pH 9.18 calibration powders are included. Press the auto calibration button, the tester will identify the calibration solutions automatically. AUTOMATIC TEMPERATURE COMPENSATION - Thanks to the built-in Automatic Temperature Compensation (ATC), our pH tester can accurately test the pH value of the sample at any temperature within the range of 0 to 50°Cno need to worry about the temperature of the testing liquid. FAST RESULTS & COMPACT SIZE - No more consuming paper strips or other inaccurate pH testing chemicals, it only takes a few seconds for the result to appear . screen. The lightweight and portable
