Fangrui Product Details Features: _x005f features: _x005f smart Thermometer: The Wireless Thermometer Console Includes Audible And Visual Alarms When The Temperature Exceeds Your Preset Minimum And Maximum Alarm Settings._x005f lcd Digital Display: The Lcd Screen Has Large Numbers, Records Minimum And Maximum Temperatures And Provides Historical Temperature Readings. With This You Can Easily Monitoring Temperature Changes In Your Fridgerator, Providing Double Protection For Your Food Safety._x005f easy To Use: With Multi Function Buttons On The Main Unit And Signal Indicators On The Transmitter, You Can Turn The Alarm On/off By Simply Pressing The Corresponding Key._x005f wide Application: You Can Use It In Your Fridgerator, Freezer Or Outdoors To Provide Safe Food Storage._x005f easy To Install: This Wireless Thermometer Is Easy To Install. The Display Unit Can Be Stood On A Table, Hung On A Wall And Attached To A Fridgerator With Magnets. The Wireless Sensor Can Be Clipped To The Door Or Hung On The Wall._x005f notice:_x005f 1.actual Color May Be Slightly Different From The Image Due To Different Light Effect_x005f 2.please Allow 1-3cm Deviation Due To Manual Measurementsize:as Picture Shown_x005f maximum And Minimum Memory Function Automatically Record The Highest And Lowest Temperature Measured, Press The Button To View_x005f temperature Range: -30 C To 60c_x005f size: 7x4.5x2.5cm After The Hook Is Put Away, 7x6.4x1.5cm After The Hook Is Released_x005f package Size: 78x68x17mm. Individual Weight 40g_x005f refrigerator Thermometer Battery: Cr2032, The New Battery Can Be Used For More Than 8 Months._x005f frosts Warnings:_x005f - Temperature Range: 4.0c To 7.9 C,_x005f - When It Runs In The Temperature Range 4.0c To 7.9 C, The Snowflake Pattern Will Appear On The Screen. Represents The Current Environment Frosts Will Appear._x005f packing Instructions:_x005f bubble Bag English Instruction Manual Neutral-packaging Boxpackage List:_x005f 1*household Digital Alarm Thermometer