hi,my audiomoths worked a few days after I set the programme.And recently I placed them on feild as usual without any change,they can't work

We used silica gel bags when there were big temperature changes to reduce condensation but I doubt this really makes much difference. We've not had any other reports of devices failing to make recordings so see if it happens again, and we can try to see if there is any pattern to it.

@AlexOk Rogers

Ok.Thank you for your attention.

Could they be getting wet? Are they deployed in plastic bags?

See what happens the next few times. What weather conditions are they deployed in? We had one report of a couple of devices that got very hot in direct sun which caused them not to make any recordings. Apart from that they are generally reported to work as intended.