Those are the thermistors that come in a Bulk. It is included in Radial as a convenience. Temperatures below 125°C can be reliably used with NTC thermometers. In order to ensure reliability, NTC thermistors should operate at -55°C as low as possible. These NTC thermocouples have 2 terminals. It is necessary to connect the 2 pins of the NTC thermistors in order for them to function properly. 0.45W of power can be absorbed by the electronic component.