I think we got this from aldi on a whim some years ago, put batteries in it and discovered how damp our house was.
My wife says she won't have it out as it gives her sleepless nights!
Anyhow, if you're curious to find out if you live in a swimming pool or a desert, this is the gadget for you!
Room climate monitor (Bexhill, TN40)
This offer has been gifted to someone and is no longer available.