Features:
1.Wireless signal transmission distance without interference 100 meters, can display two different maximum and minimum temperature records at the same time.
2.℃/˚F unit conversion: Celsius and Fahrenheit display can be switched to meet daily needs and has strong signal penetration.
3.ALARM SETTINGS: When the indoor or outdoor temperature exceeds the preset minimum and maximum alarm values, the thermometer will emit an audible alarm and a visual alarm to alert you and allow you to see if adjustments are needed.
4.EASY TO INSTALL AND OPERATE: Use the magnet on the back to magnetically attach the thermometer directly to your refrigerator or freezer, or place it on a table.
5.APPLICATION: Can be used in the refrigerator, freezer or indoors and outdoors to easily monitor temperature changes and provide double protection for your food.

Parameter:
Measuring range (transmitter) : -40℃~60℃ ( -40℉~ 140℉)
Tolerance : ±1℃ ( ±2℉ )
Temperature Resolution : 0.1
Wireless Frequency : 447.6MHZ
Wireless range : 100 meters without obstacles
Main unit size: 95x62x20mm
Transmitter size: 95x36x20mm
Use of power: (default delivery without batteries)
Host: 2pcs 7 batteries (AAA)
Transmitter: 2 pcs of 5 good batteries (AA)

Package include:
Thermometer*1
Transmitter*2