TFA Indoor-outdoor thermometer

This high-quality thermometer made of anodized aluminum is weatherproof and can be used both indoors and outdoors. The necessary mounting materials are included. By monitoring the indoor temperature, you can save on heating costs—up to 6% with a one-degree temperature reduction. Plus, you'll simply feel more comfortable. When placed outdoors, it provides the outside temperature as important information for your home, garden, leisure, and work. The thermometer is completely manufactured in Germany. A 2-point calibration makes it particularly accurate. The capillaries are filled with a specially colored thermometer liquid. Mercury has not been used for this purpose for a long time.