Features: 
Made of high quality food grade ABS material, green and healthy. Perfect material to have direct touch with food. 
Fine waterproof performance, do not affected by moisture easily. 
The thermometer is used to record temperature. Help to adjust to the suitable temperature for food storing. 
Accurate record, stable and reliable. Clear digital screen, easy for you to read the temperature. 
Hook design, can also be used as a bracket, easy to install without tools. 
Can be used in the fridge. Small in size, easy to carry, do not take much space. 
With internal battery, free of cables, convenient for you to use. Easily change batteries with a screwdriver. 

Specifications: 
Model: TS-BY53 
Material: ABS plastic shell 
Color: White 
Power supply: 3V CR2032*1 (Included) 
Operating voltage: 3V 
Measurement range: -20℃~50℃(-4℉~ 122℉) 
Accuracy: ±1℃(±2℉); Resolution: 0.1℃(0.2℉) 
Working principle: resistance temperature measurement 
Waterproof: IPX3 
Product size: approx. 85*45*20mm/3.34*1.77*0.78'' 
Package size: approx. 90*69*25mm/3.54*2.71*0.98'' 
Net weight: approx. 42g 
Gross weight: approx. 50g 

Note: It is manual measurement, there may be 1-3mm error. And item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. hope understanding.