Weather Station or Wireless Thermometer with Replaceable External Sensor?

Thargor

Hi, I need to replace my parents little Aldi weather station yet again because the external sensor has died and you cant get replacement parts for them anywhere, is there any of these out there where you can get replacement sensors or even just a couple of extra sensors to replace when one dies like this? They're really only interested in the outside temp so the simpler the better please, thanks.