I have a 3nitxca2 that stopped comunicating when out side. If i bring it in the house (were it is worm) it startes working again in 15 minutes. Have changed batteris 2 times in each unit. have tried this 4 times when it is warm works when cold -3 stopes.
The batteries are Duracell ex date 2024 It is mounted on a wood shed about 50 ft from display, All of this should not make a difference since it has been working fine for about 2 years, Just started giving trouble in the last two months.