Easy to test and identify, simply insert it into the soil and the light color will indicate the moisture level. No need to remove the tester: you can plug it into the soil for a long time for continuous testing. Indicator light: red for 0% to 15% moisture (low); green for 16% to 60% moisture (medium); blue for 61% to 100% moisture (high). It is suitable for detecting moisture in soils of various hardnesses and types, offering a wide range of applications. The housing is completely splash-proof: the black part can be immersed directly in water, while the white part cannot be submerged.