Easy to use, no power, can measure PH of the soil.
Place the probe into the container of prepared soil.
Stir once or twice to ensure that the soil is well distributed over the surface of the probe.
According to the PH, choose the right crops; or according to the crop, adjust the soil PH to proper range.
Instruction manual :
Measured soil PH value, first try to probe deeply into the earth, leaving the upper part of the probe about one centimeter.
Note that when you use when you can not hit a stone plug electrodes, do not use excessive force, otherwise is easy to damage the electrode.
Wash the electrode after use.
<4.5 is Extremely acidic
4.5-5.5 Strongly acidic
8.5-9.5 Strongly alkaline
> 9.5 Strong alkaline
Package Included :
1 x Soil Fertility Tester