You can now detect radiation in nature with your iPhone. Phew.

New environmental sensors for the iPhone let consumers take stock of their surroundings. The nitrate sensor can tell if food is really organic, or if your garden needs more fertilizer. Three other sensors for radioactivity, humidity, and electromagnetic fields will increase the quantification and digitalization of our lives. The free app that accompanies the sensors shows results in “how bad is it,” eliminating the need to constantly Google accepted limits of radioactivity.