Check Amazon UK, Ik there's some people in the UK that have them but Idk where they bought them. They also have so you can switch between cel and far. If you can find one over there get one. If not I would find some reviews on other thermometers and try them out. If your thermometer only has one probe you may have to put it in the tub to get your reading but idk. 65% humidity is good if that is your reading.