I broke my thermometer a while ago and went to get a replacement last night. I was in a hurry as I had a bus to catch so I went into a local home made wine supplies shop where I bought the last thermometer.
I found one, paid for it and left.
On the bus on the way home I had a look at it and it would appear tha I picked up a hygrometer instead!
I'm going to have to make some more wine now to get some use from it!