Does anyone know of WiFi temperature sensor or weather station? I am thinking of sensors inside and out side the house that can be viewed on the iPad (or other tablet). I am aware of a device called NetAtmo that does this, but it is quite pricey.

The Netatmo is the only decent looking one I've seen. I suppose it's expensive, but not overly so for what it does. I haven't noticed any really good computer weather stations that cost less.

Thanks, I will give NetAtmo some serious thought. One problem, for me, is that the promos don't seem to tell you much about what it actually does.

I would have thought the home security, environment, and energy systems with WiFi sensors, using a tablet as a console, would be burgeoning market but there doesn't seem to be a huge choice of apps yet.

The bottom of this page gives the the Netamo's sensor specs, which should let you know the baseline of what will be measured. Everything else is software, of course.