DS18B20 Sensor Specifications : Programmable Digital Temperature Sensor Communicates using 1-Wire method Operating voltage: 3V to 5V Temperature Range: -55°C to +125°C Accuracy: ±0.5°C Output Resolution: 9-bit to 12-bit (programmable) Unique 64-bit address enables multiplexing Conversion time: 750ms at 12-bit Programmable alarm options Available as To-92, SOP and even as a waterproof sensor Pin Out : Red - Vcc (+) Black - Gnd (-) Yellow - Data