Safecast bGeigie nano 

The kit was enjoyable to assemble and has logged to the Safecast map using the android app. The overall system is pretty solid and the kit introduces a lot of different technologies like satellite communications and atomic clocks, geiger muller tubes and high voltage power supplies, bluetooth, datalogging, arduino and open source goods and maybe the not so. Then there is the SafeCast visualization tools, nice, hope they keep improving! Thank You, well done. Learn more.