Currently, some of the most extensive uses of the loT in developing countries are in projects where the objectives include the improvement of clean water delivery and/or sanitation. The wireless COMMON-Sense Net has been deployed over a small area of two acres to measure temperature, humidity, ambient light, and barometric pressure in rural Karnataka. Soil moisture has been measured with a special probe since April 2005.,4 Data from the sensors are visualized on the project's website for real-time monitoring.