Description:This is a wireless digital freezer thermometer. It can be used in the freezer and also serve as an indoor and outdoor thermometer. Its audible alarm can warn you of the exceeded temperature in time. Features: It can be used in the freezer and also serve as an indoor and outdoor thermometer. The minimum and maximum temperatures are displayed on the LED screen and can be reset manually. With indoor and outdoor audible alarm. When the temperature exceeds your preset minimum and maximum alarm setting, it will sound an alert sound. Features Min and Max temperature records and you can easily monitor the temperature change of your refrigerator and provide double protection for your food safety. With a temperature trend indicator arrow and daily high and low information. Comes with a hanging hole so that the display can be fixed on the wall or stand on the table. How to install:The sensor is equipped with a spring clip with a plastic handle to be firmly attached to the edge of a