The Pampered Chef Baking Soda Holder with Thermometer Accurately monitors the temperature inside your refrigerator or freezer to ensure the appliance is maintaining the proper temperature for safe food storage Thermometer is analog style with temperature read range of -40 to 120F (-40C  to 50C). The color coded temperature zones helps consumer to quickly see if their appliance is at the proper temperature for safe food storage. Plastic baking soda holder adds convenient storage space for baking soda box. Snowflake shaped ventilation holes allows the natural refreshing qualities of baking soda to be released. -The monthly change date indicator has an adjustable dial to remind consumer when to replace the baking soda.