Features:Features:Smart Thermometer: The wireless thermometer console includes audible and visual alarms when the temperature exceeds your preset minimum and maximum alarm settings.LCD digital display: the LCD screen has large numbers, records minimum and maximum temperatures and provides historical temperature readings. With this feature you can easily monitoring temperature changes in your fridgerator, providing double protection for your food safety.Easy to use: with multi function buttons on the main unit and signal indicators on the transmitter, you can turn the alarm on/off by simply pressing the corresponding key.Wide application: you can use it in your fridgerator, freezer or outdoors to provide safe food storage.Easy to install: This wireless thermometer is easy to install. The display unit can be stood on a table, hung on a wall and attached to a fridgerator with magnets. The wireless sensor can be clipped to the door or hung on the wall.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Size:As Picture ShownMaximum and minimum memory function (automatically record the highest and lowest temperature measured, press the button to view)Temperature range: -30 to 60Size: 7X4.5X2.5CM after the hook is put away, 7X6.4x1.5CM after the hook is releasedPackage size: 78x68x17MM. Individual weight 40gRefrigerator thermometer battery: CR2032, the new battery can be used for more than 8 months.Frosts warnings:- Temperature range: 4.0C to 7.9 C,- When it runs in the temperature range 4.0C to 7.9 C, the snowflake pattern will appear on the screen. Represents the current environment frosts will appear.Packing instructions:Bubble bag + English instruction manual + neutral-packaging box