My 2GIG-SMKT2-345 said low battery. Change the batteries to brand new ones and it was really hard to line up the arrows and get it to mount. I had to really make sure the battery cover was seated correctly and eventually got it seated.
this was at 10PM or so. At 1:28 AM or so, I got an alert that there is loss of supervision. At 3:16 AM i get a low battery alert. When I check my actual panel, on the main screen there is no notification. If i push the green “security” button it has the yellow alert icon, which shows both of those alert. I acknowledged those at around 6:13 AM but there are still there and it is 6:46
I have not received an alert on my ADC app that the detector is back online.
When swapping the batteries of an SMKT2, make sure to leave the batteries out and the device unpowered for a minute. The SMKT2 requires at least 30 seconds between power down and power up. (Located on a sticker on the inside.)