In the package of a Bulk, NTC thermistors are contained. It is included in the Bead package for your convenience. NTC thermistors have a resistance tolerance of ±0.15°C in order to function properly. NTC thermistors should be set to 0°C~50°C temperature to ensure reliable performance. Temperatures below 50°C allow NTC thermistors to operate reliably. Optimal reliability requires a minimum temperature of 0°C for NTC thermistors.