I have bought several *wireless* indoor/outdoor thermometers...
They ALL are a piece of crap! None of them worked very long. One worked
a year and a half, but I don't consider that long. And not a battery
Anyway I switched to the "wired" type and those have been working fine
for several years. The only problem with these is you need to run a wire
from the inside unit to the outside sensor.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.