Temperature data logger

As we've only had it a day, I can't attest for sure how long the recording process is limited to, but I believe It keeps recording until it is physically reset and a pdf record is requested. It's not like a min/max as there's no display, more like a continuous recorder but does note min and max in the summary on the print out.

I have a couple of digital min max's too........am I getting a trifle obsessed, do you think?
I deny all responsibility for the data logger, wasn't my idea, but it is interesting to see when the cold spots occurred and for how long. A passing comment from me, after I'd seen a temp graph on a weather watching site, as to what equipment was needed to gather the info, prompted P to research temperature loggers. He was surprised at how cheap they were and went for it.