Wireless Digital Thermometer Indoor Refrigerator Freezer Audible Alarm Sensor

Features:● Temperature can be displayed in Celsius or Fahrenheit.● With easy-to-read LCD digital display for this thermometer.● With back stand, hanging hole and magnetic stick at back side, convenient to place or hang.● View the current room temperature as well as the temperature from the 2 wireless thermometers.● View teh high(MAX) and low(MIN) temperatures from each thermometer over time.● The wireless series is designed to work inside cold refrigerators, freezers without cords. The wireless series is flexible and can also be used to monitor interior rooms, covered exterior areas(i.e. outdoor covered porch) and even on the road in an RV.Specification:Material: ABSColor: White+BlackTemperature testing period: 50sWirelss Distance: 100 meters in the open area, 60 ~ 70 meters with obstaclesThermometer Battery: 2* 1.5v AAA Battery(NOT INCLUDED)Wireless Transmitter Battery: 2* 1.5v AA Battery(NOT INCLUDED)Working Temperature Range:Indoor display with built-in thermometer: 32℉ to 122 ℉（0℃ to 50℃）Wireless Thermometer Sensors: -40℉ to 140℉（-40℃ to 60℃）Accuracy: +/-2℉Thermometer Size: (L) x (W) x (H) 98 x 85 x 22 mm / 4 x 3 x 1 inch (appr.)Transmitter Size: (L) x (W) x (H) 38 x 105 x 35 mm / 1 x 4 x 1 inch (appr.)Package included:1 X LCD Digital Thermometer(BATTERY NOT INCLUDED)2 X Wireless Transmitter(BATTERY NOT INCLUDED)1 X English ManualDetails Pictures: