I have both Gen1 and Gen2. Perhaps the easiest way to tell is that the Gen1 USB ports are all four blue, while the Gen2 has two blue and two white.

I just got my Meteo Sensor, and have plugged it in to charge. The device blinks the display on and off every one second or so, and sometimes shudders or skips a beat and blinks more rapidly. This is true with both the supplied USB cable and another one I had available. The continuously blinking disp...