Product 1. Temperature Range Indoor/outdoor thermometer range: indoor -10~ 60 (14~ 140), outdoor -40~ 60 (-40~140) and the transmission range is 100M/ 328ft (open area ). You can use it in the fridge, freezer or outdoors, providing safe food storage. 3.Audible AlarmThe wireless thermometer console includes audio and visual alarms when the temperature exceeds your preset minimum and maximum alarm settings. 3.Easy to read displayThe LCD screen with large numbers. Records min and max temperatures providing historical temperature readings. With this feature, you can easily monitor the temperature change in your refrigerator and provide double protection for your food safety. 4. Multiple installation methods The wireless thermometer is easy to install. The display unit can stand on the table, hang on the wall, magnet on the fridge. The wireless sensor can be attached to the door or hung on the wall. 5.Easy to useThere are 6 function keys on the main unit and the signal indicator on the transmitter, you just press the corresponding button to turn on/off the alarm, switch Celsius or Fahrenheit and clear the MAX/MIN records. Article no. 81b80876-9b23-4837-93b1-61597af76c1b Read more