Low battery alarm

Is it possible to disable the low battery alarm on a 2gig GC3 for a single sensor?

You wouldn’t be able to remove low battery alerts in that way. Addressing the low battery would be the way to resolve.

Do you have a sensor which exhibits frequent low battery issues? I see a recently removed sensor in your list. is that the one that was giving trouble?

Yes, it was a DW10 that I used in my mailbox but I think the temperature got too low for it. I’ve ordered a Resolution Products RE201 to replace it, which I think should do better in low temps.

The RE201 does go down to 0 for operating temp, lower than DW10. If that is still not enough, for a full outdoor model look at the Honeywell 5816OD.