Comes with a Thermometer and 2 remote sensors, the wireless fridge thermometer can display indoor temperature and 2 groups of fridge /zer or outdoor temperature simultaneously. Includes 24 hours Min and Max temperature records and you can easily monitor the temperature change of your refrigerator and provide double protection to your food safety. The zer Thermometer can record max/min temperature and display up, down & parallel to indicate the trend of current temperature. Press "/" key for switching Fahrenheit or Celsius. The wireless refrigerator thermometer equipped with audible alarm, when the temperature exceed your pre-set minimum and maximum alarm value, the thermometer will make audio alarm to remind you and your family to know the temperature variation and make some changes in time. You can attach the main unit on your refrigerator door with its integrated magnets , or hang with its hanging hole or stand on the table with its a bracket at the back. 2 transmitters with clamps and suspended holes in the rear, convenient to clip or hang on the shelf. With easy-to-read LCD display to show the current indoor and outdoor temperature. Condition: New Item Type:Thermometer Clock Indoor temperature range:0C - +60C. Outdoor temperature range:-40C - +60C. Accurate temperature:+/-1.0 Transmission range:100M/328ft(open area) Digital Thermometer powered by:2xAAA battery(Not included). The sensor powered by:2xAA battery(Not included) Notes:Other accessories demo in the picture is not included. Colour:White Material:Plastic Package Contents: 1 x zer Thermometer 2 x Remote Sensor