I'm after getting 20-25 temperature and humidity dataloggers for deployment in the field. I've considered iButtons and other single-use devices but would rather invest in something that is both rechargable and reusable.
We were looking at the U23-001A HOBO Pro V2 sensors, but at £257/unit, they're much more expensive than I was expecting. Is this a good unit at a good price? or are there better and cheaper options out there?