Made from stainless steel, the high quality EcoSavers Fridge Freezer Thermometer is perfect for use in cold and humid conditions. If you keep your fridge or freezer too cold, they will use much more energy than needed. However to preserve your food the best temperature to set your fridge at is 4 degrees Celsius and your freezer at –18 degrees Celsius. If they are set to high your food will deteriorate faster and in some cases may become unsafe. This thermometer helps you to set the right temperatures for both your fridge and freezer, so you can keep your food fresh and safe for longer and at the same time not waste valuable energy.