The AcuRite Wireless Thermometer and Remote Sensor displays both indoor and outdoor temperatures in Fahrenheit. It uses a thermometer built into the display to give the indoor temperature and uses its wireless counterpart to read and display the outside temperature. The left side of the display shows the indoor temperature and the right side displays the outdoor temperature. Both pieces of the thermometer run on 2 AAA batteries (these are not included in the purchase). The indoor thermometer and the outdoor transmitter can be placed up to 100 feet away from one another! As for displaying this little thermometer, there are a variety of options. One of which is the ability to hang both the display and its outdoor counterpart on a wall. Another option is to set the display down on a level surface with its incorporated stand.