The Delmhorst KS-D1 digital soil moisture tester, used with GB-1 Gypsum Soil Blocks, make up a valuable system for measuring soil moisture content. With an easy-to-read digital display, a portable and rugged design, and internal battery and calibration checks, this meter measures moisture available to plants. Take the guesswork out of scheduling irrigation with the KS-D1. The features of the KS-D1 provide many benefits for users. With accurate moisture readings, you can eliminate under-irrigation, which prevents wilting and makes applying fertilizer more efficient. The KS-D1 also eliminates over-irrigation, which creates remarkable savings in power, labor, and water usage. Measuring moisture content effectively prevents soil spoilage due to excess water and poor drainage and yields bigger, better crops at lower cost.