Agreed. I would think monitoring wireless devices at a polling place would also be able to track the voters’ phones.
That’s not the big issue, because wi fi devices are basically sending that info out into the public airwaves. It’s no more illegal to “detect” a device than it is to tune into a radio station.
It’s his statements about making sure the devices are working accurately that seems troubling. There’s no way to do that just by detecting a signal. So it implies his device might doing more than just detecting.