2 Wireless Sensors for Different Places - With built-in console and 2 remote sensors, you can place sensor in fridge or outdoor. Wireless fridge thermometer can display indoor temperature and 2 groups of fridge/freezer or outdoor temperature simultaneously, it means the display will show 3 temperatures at the same time. Sound Alarm Function - Equipped with a sound alarm, when the temperature exceeds the preset minimum and maximum alarm value, thermometer will give sound alarm to remind you and your family to know the temperature variations and make certain changes in time. 3.6Inch HD Large Screen & Record Min and Max - Indoor Outdoor Thermometer with HD LCD Display. Large data for comfortable viewing day and night. Record and display max/min temperature. Interior: -10-60C; Exterior: -40-60C; Transmission Range: 30M/98.4ft (open area). Press "C/F" key to switch 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 * 1.5cm. Easy Installation & Widely Used - You can place the sensor in refrigerator or outdoor. on the main unit, there is a hanging hole and a bracket on the back, you can hang it on the wall or stand on the table.