All hydroponics gardens or operations are heavily dependent on nutrient solution to ensure proper plant growth. The plants in any system grow in a medium that provides no nutritional value, so having proper nutrient solution is vital to plant life. It is crucial that the nutrient solution is monitored and properly fed to the plants.
You want a sensor that will provide the best measurement accuracy with the maximum lifetime, but the number of different laboratory pH sensors out there can be overwhelming. Before making a laboratory pH sensor purchase it is crucial to have an understanding of your application and the conditions the sensor will endure while in use. Based on this knowledge you can make a decision on what features are required.