We make them, and I'm trying to sell as many as I can to fund this research (it's not funded otherwise, I'm independent anarchist scientist), but so far it's a struggle.
Here is a frontpage with sample of actual data http://apiologia.zymologia.fi/
edit: clicked "publish" here
We record humidity and temperature and their songs you can listen to by clicking on the plot (easier to look at in log scale), and some ancient (1970s) algorithms to predict swarming.
This is second sensor array, the first on is in Chernobyl, it's 20-ish years old now and keeps transmitting radiation levels for public https://do.pripyachka.com/graph/?n=72 (this is also anarchy project, yes, fuck the war and all lying governments although I'm totally on Ukraine's side, electronics just works without meatbags attention). So I can honestly say that the system is quite robust and low-maintenance. Please contact me if you or your friends want some.
I did quit after getting PhD, which simplifies changing citizenships and getting some kind of funding a lot. Now I'm trying to figure out whether PhDs are like knights - would anyone recognize PhDs if I find a committee of 3 to grant them (I already have 2)?