I used to have a wireless thermometer - one part would be outside next to something vulnerable, and the other part would be inside where it could warn me that I needed to dash out and put a cover on the plants. It stopped working and I haven't replaced it, though I've thought about it.
Now there is something interesting on the back cover of Lee Valley's Christmas Gift Catalogue. There are three wireless environmental data loggers, one for just temperature, one adds humidity, and the third also adds barometric pressure and density altitude (whatever that is). The price goes up with each addition, of course.
You can select how often conditions are checked, and an iOS device that is within 50 feet can receive "real time and historical data".
Well, is this overkill? Maybe if I were working on a PhD ....
Do any of you think this would be useful?
Victoria, British Columbia, Canada a cool mediterranean climate - rainy winter, dry summer
If I were close enough to "dash out", as opposed to being 2 1/2 hour's drive away from the farm; I doubt I'd buy any of those toys. I suspect such things are really useful to Agribusiness mass-monoculture, but I'm not in that, so I don't want to be distracted/harassed by such "bells and whistles", even when they're downsized for non-commercial consumer marketing.
"Yesterday is history; tomorrow is mystery; today is a gift, that's why it's called the present." E. Roosevelt "If the world is to end tomorrow, I would plant an apple tree today" Martin Luther