This “Electromagnetic Field Destector Bracelet” will alert you of the EMF affected areas that you inhabit daily. It reminds me of a project that I worked on in 2002, so it’s nice to see the evolution of the device is getting smaller and more integrated into everyday clothing and accessories. The next step with this one would be how to integrate the mapping aspect, a problem that I never fully finished with my design.

Low cost wearable sensor for detecting Electromagnetic fields