We deployed 65 units facing up in this way in the spring. Most were deployed by volunteers in their yards where they could tend to the audiomoths as needed, and others were at remote sites. So far I have only received 52 of the units, but 18 of the cases leaked, and 16 microphone elements are dead.

I have six of the Audiomoths on hand that had water in the case, and of these 3 record only static and the other 3 are fine.

We also have had issues with the membranes rupturing on the IPX7 cases (ours were from Labmaker made in summer 2020). I sent out 65 Audiomoths to volunteers in New Brunswick to monitor Black Scoter migration this spring. Of these, 6 units developed small holes similar in size to those pictured by John Connock, and 1 had a larger round hole. Volunteers reported water in three of the other cases that had no obvious holes in the membrane, though the membranes appear to have unusual creases. Would it be possible to send replacement membranes for these 10 units and possibly some extras? I have only received half of the Audiomoths back from volunteers, so there could be more that leaked. We had volunteers install the cases facing straight up since we were interested in birds migrating overhead. Was this a bad idea? Thanks