The PheNode in the Field for Farmers (IMAGE) Donald Danforth Plant Science Center Caption Modular sensors and cameras on the PheNode take real-time measurements of temperature, humidity, CO2, rainfall, air quality, wind speed, light quantity and quality, soil moisture, soil temperature, pH and nutrient composition. Credit Donald Danforth Plant Science Center Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.