[Accurate and MAX / MIN Record and Temperature Range]-The value accurate to one decimal place, which is different from the integers of other products. Indoor temperature range: -1060 (14140), outdoor temperature range: -4060 (-40140). The transmission range is 100M / 328ft (open area). It can also record the highest and lowest temperature, and display up, down and parallel arrows to show the current temperature trend. [Sound Alarm Reminder]-The temperature of the wireless refrigerator has an audible alarm. You can manually set the maximum and minimum alarm values. It will sound when the temperature reaches your preset maximum or minimum alarm value limit. It is a useful helper for you and your family to understand temperature fluctuations and make some changes in time. [Dual wireless sensors in different locations]-Built-in console and 2 remote sensors, the wireless refrigerator thermometer can display indoor temperature and 2 sets of outdoor temperature at the same time. You can use it in the refrigerator, freezer or outdoors. It provides safe food storage and allows you to live a healthy life. [Easy to operate]-The weather station has 6 function buttons, and the transmitter has signal display. You only need to press the corresponding button to turn on/off the alarm, switch between Celsius or Fahrenheit and delete the maximum/minimum record. In addition, the compact and user-friendly design is very suitable for installation on all types of refrigerators or freezers.