Ph Tester Accuracy-for Water Food Aquarium, Pool Hydroponics, Features: Easy to Use:Simply Immerse the PH Meter Electrode in the Solution to Be Tested, Readings Are Quickly Display on a Large Lcd Display Wide Application:Ideal Instrument for Any Aquarium, the Fishing Industry, Swimming Pools, Spa, School Laboratories, Food & Beverage, Drinking Water Etc Auto Calibrated:Features In-built Calibration with 2 Buffer Powders(included) Just Press a Button to Finish the Calibration This PH Meter is Factory Calibrated Users Can Use It Directly Fast and Accurate Results: No Need to Work with Those Annoying Color Charts and Test Strips Resolution: 0 01 PH, Accuracy: 0 01 PH Compact Portable Design:Pocket Fitting PH Meter That's Also Lightweight and Compact Total Concealed Fit in Your Bag or Pocket for Easy, Casual Carrying Specifications: Display: LCD Digital Accuracy: 0 01 Resolution: 0 01 Operating Temperature: 0~60C Measuring Range: ~14 00 Package Includes: 1 PH Tester