Magnetic Digital Thermometer Kitchen Refrigerator Food Preservation Temperature Tester ???Energy-Saving On/Off Switch??This high-precision refrigerator thermometer is designed with an easy on/off switch,allowing you to save energy when not in use. Perfect for household refrigerators,freezers,or kitchen cold storage units ???Fahrenheit and Celsius Conversion??Effortlessly switch between Fahrenheit and Celsius with a simple button press,making it versatile and user-friendly for all your temperature monitoring needs ???Convenient Magnetic Back and Hook??The thermometer features a magnetic back and built-in hook for easy placement. Attach it to your refrigerator door or hang it in your kitchen for quick access ???Low and High Temperature Alerts??When temperatures fall below -20??,the display shows ?��LL.L?��; if temperatures exceed 60??,it will read ?��HH.H?��,ensuring you are aware of extreme temperature changes ???Frost Alert Function??This thermometer includes a frost alert system: Temperature range: 4.0?? to 7.9??. When operating within this range,a snowflake icon appears on the screen to notify you of potential frost conditions ?Specifications: ?Material: Plastic ?Temperature range: -20?? to 60?? ?Size: 6.7x2.5x4.3cm when hook is folded,6.7x6x1.2cm when hook is released ?Battery: 1 x CR2032 (included) ?Note: When the screen prompts that the battery is low,please pay attention to replace the battery. Package included: ?1 x Digital Thermometer ?1 x English User Manual