These handy pH test indicators give a quick reading of the ph of solutions making them ideal for the grow room.
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.
Available in Narrow and Wide spectrum.
The Narrow spectrum pH test indicator measures between pH 5.6 and 7.4, at increments of 0.2, and the Wide spectrum pH test indicator measures between 4.0 and 8.5 at increments of 0.5.