The soil moisture meter DM-8 is a very useful control meter for continuously measuring the humidity in all kinds of ground. Once properly installed, all you have to do is look at it for checking and replenishing the tube. Because the scaling in three colours, dry, damp and wet, you can see the condition of the soil humidity at a glance. When you divide several meters over a cultivation area, you have a very quick overview and immediately know where and how much water should be irrigated.