You can use it as a home, restaurants, bars, cafes, room thermometer, or in the fridge/freezer, ensure your food is being stored at the appropriate safe temperature to extend the useful life, and end early perishable. Features: [Temperature Range]Monitor temperatures from -58°F to 158 °F (-50°C to 70°C), [Digital Display]Just glance at the thermometer, you can easily read the display with the big, bold digits. [Accuracy]Quickly and accurately monitor the temperature of your refrigerators, freezers, incubators, terrariums, and small pet habitats. [Temperature Alarm]The alarm feature provides an alert when the temperature rises above or falls below a set point. [Widely Applicable]Perfect for your refrigerator or freezer, won't take too many places. Specifications: Color: Blue & White Material: ABS Unit Display: / Temperature range: -50 to 70 / -58 to 158 Function: High and low temperature alarm, Memory function Battery: 1*1.5V AG13 Button Battery(Included) Occasion: Indoor, Outdoor Package Size: 10*12*2cm / 3.93*4.72*0.78inch Package weight72g / 0.15lb Package List: 1 * Digital Refrigerator Thermometer 1 * Charging Cable