Specifications: If the temperature is below -20℃, it will display: "LL.L". If the temperature is higher than 60℃, it will display: "HH.H". Frost alarm: Temperature range: 4.0℃ to 7.9℃. When it runs inside this pickup, the snowflake icon will appear on the screen. The refrigerator thermometer can be turned off by the switch button to save electricity. Fahrenheit Celsius is converted by button. Item Name: Freezer Thermometer Temperature Range: -20℃ to 60℃ Quantity: 1 Pc Power Supply: CR2032 Battery (Not Included) Features: Portable, Useful, Easy to Use, With Hook Size (with Unfolded Hook): 6.7cm x 6cm x 1.2cm/2.63" x 2.36" x 0.47" (Approx.) Size (with Folded Hook): 6.7cm x 2.5cm x 4.3cm/2.63" x 0.98" x 1.69" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Freezer Thermometer 1 x User Manual