pH-2 Pro Water Quality Pen Digital pH Meter 0.01 Accuracy Tester Pen -2.0016.00 Measuring Range with Backlight Display Aquarium Hydroponic Lab Measurement

1、Easy to Use: Simply immerse the pH meter electrode in the solution to be tested, readings are quickly display on a large LCD display. 

2、Auto Calibrated: Just press a button to finish the calibration. 

3、Fast and Accurate Results: No need to work with those annoying color charts and test strips. 

4、Compact Portable Design: Total concealed fit in your bag or pocket for easy, casual carrying. 

5、Wide Application: Ideal instrument for any aquarium, the fishing industry, swimming pools, spa, school laboratories, food \u0026 beverage, drinking water etc.