Monitoring and Control
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. [...]
Monitoring and Control
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.