This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Reports degrees C with 9 to 12-bit precision, -55C to 125C (+/-0.5C). Each sensor has a unique 64-Bit Serial number etched into it - allows for a huge number of sensors to be...

The TMP36 is a low voltage, precision centigrade temperature sensor.  It provides a voltage output that is linearly proportional to the  Celsius temperature. It also doesn't require any external calibration to  provide typical accuracies...