I've recently taken delivery of a couple of AudioMoth recorders so took the opportunity to try them out. Unfortunately the software I was using to find bat calls was not well behaved so I had to scan through the files. Seems to work well, until one took a dive off the raining and into the Tay. Fortunately it hit the wall on the way down which bounced it out and onto a bit of mud above the water so I was able to scramble down and rescue it.
I was comparing various enclosures to see how badly they attenuate the noise. Result is I need to do a bit more work on mine.