1. Whether the temperature of the measured object needs to be recorded, alarmed and automatically controlled, and whether it needs to be measured and transmitted remotely;
2. The size and accuracy of the temperature measurement range;
3. Whether the size of the temperature measuring element is appropriate;
4. In the case where the temperature of the measured object changes with time, whether the lag of the temperature measuring element can meet the temperature measuring requirements;
5. Whether the environmental conditions of the measured object damage the temperature measuring element;
6. The price is guaranteed, whether it is convenient to use
