Check the listing for details. 5pcs DS18B20 Digital Temperature Sensor 1-Wire Original Dallas Chip US Ship. Condition: New. Listed at 5.50 USD. 100% Brand NewUnique 1-Wire® Interface Requires Only One Port Pin for CommunicationReduce Component Count with Integrated Temperature Sensor and EEPROMMeasures Temperatures from -55°C to +125°C (-67°F to +257°F) ±0.5°C Accuracy from -10°C to +85°C Programmable Resolution from 9 Bits to 12 Bits No External Components RequiredParasitic Power Mode Requires Only 2 Pins for Operation (DQ and GND)Simplifies Distributed Temperature-Sensing Applications with Multidrop Capability Each Device Has a Unique 64-Bit Serial Code Stored in On-Board ROM Flexible User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies DeviceShip within 24 Hours with USPS First Class Mail without tracking Datasheet: https://datasheets.maximintegrated.com/en/ds/DS18B20.pdf Orders more than $15(Storewide, tax excluded) will ship with USPS First Class Package with Tracking. Package is out of control after we drop off at the carrier, sometimes mail will be lost during the carrier transportation, if you don't receive the items more than 10 days after shipment, please contact us for reshippment or full refund. Thank you for your understanding and hope you have a good day! Please Keep parts and components out of reach of children! For buyers who are using freight forwarder service, please either make purchase over $15 to have free tracking shipment or pay $3.80 for shipping, otherwise orders will be cancelled.