Vitalink Essentials Calibration Buffer PH7 Solution 250ml Control Hydroponics Essentials Calibration Buffer PH7 Solution 250ml Control Hydroponics Use VitaLink ESSENTIALS Buffer solution to calibrate pH meters. This pH 4 Buffer solution gives an accurate representation of the pH scale at pH4 to measure against. Use VitaLink ESSENTIALS Buffer 4 for a 2 point calibration scale. [...]
The pH Test Kit is perfect for small tests and has a wide range from 4.0 to 8.5 Half fill the test tube with nutrient solution and add 3 drops of indicator. Compare the color with the color chart to determine the pH level. This test kit is reliable, easy to use and inexpensive.
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