NTC thermistors are packaged as a Bulk. The Probe package contains it for your convenience. In order for NTC thermistors to operate, the resistance tolerance must be ±0.15°C. When using NTC thermistors, the temperature should be set to 0°C~50°C to ensure reliable operation. NTC thermistors are capable of reliable operation at a maximum operating temperature of 50°C. In order to ensure reliability, NTC thermistors can be operated at a minimum temperature of 0°C.