We’re already carrying enough sensors to report our locations, record videos on the go, and measure the inner workings of our bodies. So the next step seems only natural — tracking the quality of the environment around us, from the air we breathe to the food we eat.
That’s the idea behind the Lapka personal environment monitor, a $220 pack of sensor modules that plug into your iPhone, iPod Touch or iPad. The Lapka system is made up of four lead-free, water-resistant pods, each one containing sensors that measure different aspects of your environment: background radiation levels, electromagnetic field strength, humidity and the nitrate levels in organic matter. Simply plug one of the block-shaped sensor modules into your iPhone using the included cable, then fire up the Lapka app and begin scanning your environment.