ITEM NAME:5PCS DS18B20 IC 18B20 TO-92 Thermometer Temperature Sensor OZ Description: Manufacturer P/N: DS18B20 Unique 1-Wire interface requires only one port pin for communication Each device has a unique 64-bit serial code stored in an on-board ROM Requires NO external components Can be.Manufacturer P/N: DS18B20. Can be powered from data line from 3V to 5.5V. Requires NO external components.