Generic Refrigerator, indoor and, Temperature with Audible Alarm, Min/Max

Function: Monitor 3 kinds of temperature and all displayed simultaneously, MIN temperature records of past 24 hours for home indoor, outdoor and refrigerator. Wide Temperature Range: Outdoor -40F to 140F (-40C to 60C) (2F), Indoor 32F to 122F (0C to 50 C) (1C). The wireless sensor s have /328ft (open area) remote range with strong signal . Easy to install and operation: Mount display unit directly to your refrigerator or freezer using the magnets on the back, on wall or just place on the table. The wireless clip on door or on the wall. Alarm Settings: When indoor or outdoor temperature exceed your minimum and value, the will make audio alarm and visual alarms to remind you, allowing you to be if adjustments are necessary. Application: Can be used it in the fridge, freezer or outdoor, monitor the temperature change easily, providing double protection to your food.