The VitaLink ESSENTIALS pH test indicator kit uses a solution known as universal indicator to change a small sample of your nutrient solution to a different colour. Compare this colour to the spectrum chart to indicate what pH your solution is reading at. Although not as accurate as using a pH meter to analyse your nutrient solution, this indication kit is a quick, precise and cost efficient measure giving over 100 readings.
Spectrum reads solution between pH4 and pH8.5 at 0.5 increments.
Also available as Narrow Spectrum Test Kit
Spectrum reads solution between pH4 and pH8.5 at 0.5 increments.
Also available as Narrow Spectrum Test Kit