The use and appearance of the bath thermometer are really great, but there are two button cells L1142 with 3V in use, you can not easily buy more. We had the old-Topcom Badeente who just used those battery have, then disposed of because of a dead battery (for other reasons) and have now again a bath thermometer with these difficult nachzukaufenden batteries. It would be nice if Amazon the battery type with writing on the side!