Wireless Digital Freezer Alarm Thermometer One main thermometer with a remote sensor and wireless connection. It displays indoor temperature and either the refrigerator/freezer temperature or outdoor temperature simultaneously, providing an additional layer of protection for food. 24hour min and max records. The unit keeps track of the 24hour minimum and maximum temperatures, helping you monitor fluctuations and respond quickly to changes. Easytoread LCD display. Current indoor and outdoor temperatures are shown clearly. Temperature ranges are indoor 10°C to 60°C (14°F to 140°F) and outdoor 40°C to 60°C (40°F to 140°F). Sound alarm for temperature changes. A builtin audible alarm alerts you when the temperature goes outside the preset minimum or maximum values, enabling timely adjustments. Flexible mounting options. The main unit can be mounted on a refrigerator door with the integrated magnet, hung on the wall via the hanging hole, or placed on a table using the back bracket. The sensor includes clips and hanging holes for attachment to a shelf. Practical use scenarios Home fridge and freezer monitoring: keep track of indoor and appliance temperatures to protect perishable foods and reduce waste. Garage or outdoor storage: monitor temperatures in secondary fridges or freezers for game meat, bulk supplies, or beverages. Power outage or doorleftopen prevention: rely on the alarm and continuous readings to detect temperature deviations and take action quickly.