The next best garden tool to a shovel, the Soil Sensor is a compact device that you can insert anywhere in your garden or yard. It will continuously update your Terra with the soil temperature, moisture level and amount of light received. Wonder if a spot is too sunny or shady for that plant? Not sure if you need to water today? Or maybe if the soil is warm enough to start planting in the spring? Use them wherever you want your plants to thrive, and watch your thumbs turn green!