I am planning a study which will require long term humidity and temperature monitoring within 60+ tree canopies. I have identified the EasyLog USB Dataloggers as being the only affordable outdoor dataloggers suitable for this purpose. I was hoping that some other researchers have used these dataloggers for long term outdoor use, and can advise me on whether or not these devices are suitable to be left outside for long periods. As I will be recording temperatures in British temperate forest so they will be exposed to plenty of rain and solar radiation.