1. ℃/℉ unit conversion: ℃ and ℉ display can be switched to meet daily needs. 2. Alarm function: When the temperature exceeds the set temperature value, the buzzer will issue an alarm sound. 3. A variety of display methods: hanging hole design, bracket design, magnetic design. 4. The size and temperature values are displayed on the same screen for more intuitive observation of data. 5. Wide range of applications: suitable for household refrigerators, supermarket freezers and other fields. Temperature measurement range:-50-70℃ (-58-158℉) Accuracy:±1℃ Battery:1 x AAA 1.5V battery(shipped without battery) Product size:71x65x17mm Line length:1.5m Colour:Black Material:Plastic Package Contents: 1 * Digital Fridge Thermometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.