Temperature Sensors

Thermistor: Resistance changes considerably with temperature. Positive and negative temperature coefficient versions available.

Resistance Temperature Detector (RTD) PT100 : Platinum element whose resistance is 100 Ohm at zero degree Celsius.

Temperature sensor ICs , LM35 : 3 pin IC operated at 5 volt. Designed to give an output voltage = Temp in degree Celsius * 10 mV