ITEM NAME:Digital Ph Meter, 0.01 Ph High Accuracy Pocket Size Ph Tester With ATC 0-14 O1E6 Digital Ph Meter, 0.01 Ph High Accuracy Pocket Size Ph Tester With ATC 0-14 O1E6 Wide Use:Perfect for Household or Laboratory Use, Suitable for Testing Ph Balance of Drinking Water, Pool, Aquarium, Ro System, Spa, or Hydroponics; Appropriate for Wide Range of Applications. High Accuracy:The pH meter with auto calibration button can automatically identify standard buffer solution of pH4.00, pH9.18, and pH6.86; its high accuracy 0.03pH range of error ensures more reliable results; automatically temperature compensation(ATC) ranges from 0℃?50℃(32 °F~122 °F) automatically to ensure accurate readings. Auto Calibration:The Ph Meter Has an Auto Temprature Compensation Feature That Adjusts to Water Temperatures and Water Quality to Give Ph Readings Almost Instantly. As Well, You Can Calibrate the Tester with One press Button Using Vantakool Buffer Powder. Easy to Operate:Just press the button to switch power, insert and stir gently in the test solution, then the LCD display with back light get stable pH value and temperature 0℃?50℃(32 °F~122 °F) within seconds,no more color charts or messy test strips.User's Manual :This product comes along with a detailed instruction about operation and pH calibration correction for your reference. Large digital display makes it easy to read.Pocket sized, handheld pH meter is lightweight, compact, conveniently fits in your pocket or bag and goes anywhere Measuring range: 0.00-14.00PH Resolution: 0.01 pH Accuracy: ± 0.1 pH Operating Temperature: 0-80 Dimension: 153mm x 29mm x 16mm Life expectancy: about 500 hours Relative humidity Less than 95% Digital pH meter with two key: On and off switch + Auto Calibration button Auto- One Press Automatic Calibration; CAL - Calibration button Feature: High accuracy ± 0.1 pH With automatic temperature compensation (ATC) feature Easy to set up with the solutions provided,Batteries to power the ins