Grow Gadgets - pH Meter Tester
£25.00
This user friendly meter from Growgadgets measures how acidic or alkaline a solution or a soil is.
The scale is from 1-14.
Most acidic = 1
Neutral = 7
Most alkaline = 14
Optimal plant pH = 6 to 6.5
pH outside of the range 6 to 6.5 and nutrients will be locked out and the plant will be unable to absorb the food it needs. The results are stunted growth and maybe death.