Features:_x005F_x000D_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._x005F_x000D_Smart Thermometer: The wireless thermometer console includes audible and visual alarms when the temperature exceeds your preset minimum and maximum alarm settings._x005F_x000D_Easy to use: with 6 function keys on the main unit and signal indicators on the transmitter, you can turn the alarm onoff by simply pressing the corresponding key._x005F_x000D_Wide application: you can use it in your fridgerator, freezer or outdoors to provide safe food storage._x005F_x000D_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. _x005F_x000D_ _x005F_x000D_Notice:_x005F_x000D_1.Actual color may be slightly different from the image due to different light effect_x005F_x000D_2.Please allow 1-3cm deviation due to manual measurementWireless Frequency: 433MHZ_x005F_x000D_Wireless range: 100m without interference_x005F_x000D_Host measurement range: 960C_x005F_x000D_Size: as shown_x005F_x000D_Power source used: 2 x AAA batteries not included_x005F_x000D_Transmitter range: -4060C_x005F_x000D_Use of power supply: 2 x AA batteries not included_x005F_x000D_Housing material: Plastic ABSPackage List:_x005F_x000D_1 x Digital Alarm Thermometer