This Soil Tester is virtually indestructible in its solid state construction, gives accurate readings, will not stain hands or clothing, requires no solutions and is factory calibrated to known chemical standards. In other words, it is well adapted for it's intended use.

The pH portion of the tester utilizes the chemical reaction known as oxidation reduction to measure pH within the range of 1 through 9, where pH 7 (neutral) is the pointer's resting point. Its primary function is to quickly discern an acid soil from an alkaline soil and after one minute, a weak acid/alkaline from strong acid/alkaline soil.

항              목                         최소치                적정치                 최대치                  

Nitrogen(질소질)                 50ppm              50에서 200ppm                20ppm

Phosphorous(인산질)          4ppm               4에서 14ppm                      14ppm

Patash (가리질)                    50ppm             50에서 200ppm                  200ppm