What kind of thermometer can in the fridge?

In daily life, the refrigerator is indispensable, many people want to use a thermometer to measure the real-time temperature of the refrigerator inside, in order to achieve the best temperature preservation, but I don't know what kind of thermometer can in the fridge? In fact, the refrigerator freezer temperature distribution is uneven, refrigeration indoor temperature from top to bottom in a ladder temperature, top temperature, lowest is about 3 ℃, the highest temperature at the lower end of the fruit and vegetable box, about 6 ~ 10 ℃. And according to the national standard, the refrigerator freezer temperature should be between 3 ~ 10 ℃. Fresh fish best refrigeration temperature of 3 degrees below zero. Under the condition of 2 to 5 degrees cold meat, can save a week. The best temperature for storage of alcohol 5 to 20 degrees. Milk cold storage, the best temperature for 2 to 4 degrees. Tea at 20 degrees below zero to 10 degrees temperature storage, can prevent quality become worse for a long time, to keep the vitamins are not destroyed. Eggs best temperature: 15 degrees in the following, the egg is not easy to rotten. To ensure food safety, below this kind of special refrigerator thermometer, can be directly placed in the refrigerator, intuitive and convenient; Safe and reliable, long life; Material: stainless steel SS304, elegant appearance, high sensitivity.