2 wireless sensors for different locations - With built-in console and 2 remote sensors, you can place sensors in the refrigerator or outside. Wireless refrigerator thermometer can simultaneously display indoor temperature and 2 groups of refrigerator/freezer or outdoor temperature, this means the screen will display 3 temperatures at the same time. Audible alarm function - Equipped with an audible alarm, when the temperature exceeds the preset minimum and maximum alarm value , the thermometer will alarm to remind you and your family to know the temperature variations and make some changes in time. 3.6 inch HD big screen & record min and max - indoor thermometer for outdoor use with HD LCD screen. Large data size for convenient viewing day and night. Record and display max/min temperature. Interior: -10-60C; Exterior: -40-60C; Transmission range: 30M / 98.4ft (open area). Press "/" button to switch to Fahrenheit or Celsius Battery powered & intimate service - Main unit requires 2*AAA (not included), 9.5*8*2cm; Each sensor 2 * AAA (not included), 10.5 * 3.5 * 1.5 cm. Easy installation and easy use - You can place the sensor in the refrigerator or outdoors. On the main unit, there is a hole for hanging and a stand on the back, you can hang it on the wall or stand on the table.