Typically, NTC thermistors are packaged in a Bulk package. In order to make things easier, it is included in the package Cylindrical Probe, Glass. A NTC thermistor must have a resistance tolerance of ±20% in order to operate. For reliable performance, NTC thermistors should be set to -60°C~300°C. Each of these NTC thermistors has a total of 2 terminations. In order for NTC thermistors to work properly, they must have their 2 pins connected.