It can help you gain a complete understanding of your plants and allows you to check the volume water content in the soil to ensure that the plants are properly cared for. Ensure accurate and instant test results, so you can quickly check the soil moisture. The dial is large and clear, and the dial with ten scales is easy to read. General. Our instrument is very suitable for small gardeners or indoor plants, but it is also very suitable for landscape irrigation, agriculture and even research. Since each plant has different humidity requirements, do not let the soil over water or become too dry. Very high precision, this soil tester is very accurate and precise.