The Gypsum Block soil moisture meter starter kit has a practical application for soil moisture measurement and environmental monitoring. The principle is the movement of water in and outside the block is related to the soil water content conditions of the soil. When the soil dries out, the gypsum block loses water and the resistance reading becomes increasing and inversely, the gypsum block gains water when the soil gets wet and the resistance reading from the electrode decreases .  It includes the following:

• GB59K (Old part number: 5910F1K1): Gypsum Block soil moisture meter starter kit
• GB59M (Old part number: 5910A): Soil moisture meter (CE Compliant)

Additional Gypsum blocks are available separately:

GB6 (Old part number: 5201F1L06): Soilmoisture Gypsum-Block, 6 Ft Lead